The Internet Is Not Actually in the Cloud

We often talk about the internet as if it exists somewhere above us.

The cloud.

The network.

The digital world.

But much of the world’s international communications eventually reaches something very physical.

A cable lying on the ocean floor.

Thousands of kilometres of fibre-optic cables cross the world’s oceans, connecting continents and carrying enormous volumes of international communications and data.

They support internet traffic, financial transactions, cloud services, business communications and government networks.

Most people never see them.

That is precisely what makes them so interesting.

Some of the most important infrastructure supporting modern civilisation is almost completely invisible.

And governments are increasingly treating it as a security issue.

Why Undersea Cables Matter So Much

Modern economies depend on constant international connectivity.

Banks communicate across borders.

Stock exchanges move information in milliseconds.

Cloud companies transfer data between continents.

Businesses conduct international operations.

Governments communicate with foreign missions.

Consumers make international video calls and access websites hosted thousands of kilometres away.

All of this depends heavily on physical infrastructure.

The International Telecommunication Union says submarine cables carry the vast majority of the world’s intercontinental electronic communications.

That makes them critical infrastructure on a global scale.

If a major cable system is disrupted, the consequences can extend far beyond slower internet.

Financial markets could experience disruption.

Businesses could lose connectivity.

Cloud services could be affected.

Countries could be forced to reroute traffic through alternative cables.

And in an extreme scenario involving multiple simultaneous failures, entire regions could face serious communications problems.

The Ocean Floor Has Become Strategic

For much of modern history, military power was concentrated above the ocean.

Navies controlled shipping routes.

Aircraft controlled airspace.

Satellites watched from above.

Now there is another layer.

The seabed.

It contains pipelines, cables, sensors and other infrastructure connecting modern economies.

That has transformed the deep ocean into an increasingly important strategic environment.

Countries are beginning to think about the seabed in much the same way they think about other critical domains.

Who can monitor it?

Who can protect it?

Who can repair infrastructure?

And perhaps most importantly:

Who could potentially interfere with it?

The Sabotage Question

This is where the geopolitical controversy begins.

Undersea cables can be damaged accidentally.

Fishing equipment can catch them.

Anchors can drag across them.

Natural events can cause failures.

But deliberate damage is a completely different problem.

European governments have become increasingly concerned about suspicious incidents involving subsea infrastructure in the Baltic and other waters.

NATO has consequently increased attention on protecting critical undersea infrastructure.

The concern is not simply that cables might be cut.

It is that determining responsibility can be extremely difficult.

A ship could appear to be conducting ordinary commercial activity.

A cable could suddenly fail.

Investigators then have to determine whether the incident was accidental, criminal or deliberate.

That uncertainty creates a powerful geopolitical problem.

The Perfect Grey-Zone Weapon?

A conventional military attack is obvious.

A missile launch produces evidence.

Aircraft can be tracked.

Ships can be detected.

A damaged cable can initially look like an accident.

That makes undersea infrastructure potentially attractive for grey-zone operations.

Grey-zone competition involves actions below the threshold of conventional warfare.

The objective is to create pressure without triggering a full military response.

If a country suspects another state of deliberately damaging infrastructure but cannot prove it, retaliation becomes politically and legally complicated.

That ambiguity is one of the reasons undersea cables have attracted increasing attention from security officials.

Russia and the European Cable Problem

Russia has become one of the countries most frequently mentioned in discussions about seabed infrastructure security.

Western governments have repeatedly expressed concern about Russian maritime activity around critical infrastructure.

One particular area of attention is the Baltic Sea.

The region contains a dense network of cables and pipelines and has become increasingly militarised following Russia’s invasion of Ukraine.

NATO has expanded its focus on protecting critical maritime infrastructure.

The concern is broader than Russia alone.

The underlying issue is whether hostile states could exploit civilian infrastructure during periods of geopolitical tension.

China Is Another Major Factor

China’s role is even more complicated.

China is simultaneously a major technology producer, a major trading power and a strategic competitor of the United States.

Chinese companies participate in international telecommunications infrastructure.

At the same time, Washington and Beijing increasingly compete over technology standards, telecommunications equipment, data security and digital influence.

That competition increasingly extends beneath the ocean.

The question is not simply who builds the cables.

It is who owns them.

Who finances them.

Who supplies the equipment.

Who controls the landing stations.

And who controls the data routes connected to them.

The US-China Technology War Goes Underwater

The rivalry between Washington and Beijing has already spread across semiconductors, artificial intelligence, telecommunications, cloud computing and advanced technology.

Submarine cables fit naturally into this larger competition.

The United States and its allies increasingly want secure communications infrastructure that they believe is resistant to foreign influence.

China has simultaneously expanded its own technological capabilities and connectivity projects.

The result is a gradual fragmentation of global digital infrastructure.

The internet remains global.

But the infrastructure supporting it is becoming increasingly geopolitical.

India Has a Huge Stake in This

India is often missing from discussions about submarine cable geopolitics.

That may change.

India is increasingly dependent on international digital connectivity.

Mumbai, Chennai and other coastal locations are connected to major international cable systems.

India’s technology sector, financial institutions, cloud infrastructure and digital economy depend heavily on reliable international bandwidth.

India is also located in one of the most strategically important parts of the Indian Ocean.

That gives New Delhi a unique position.

India sits near some of the world’s most important maritime trade routes.

It also sits between the Middle East, Africa, Southeast Asia and Europe.

The Indian Ocean could therefore become increasingly important in the future security of submarine cables.

The Andaman and Nicobar Advantage

India’s Andaman and Nicobar Islands occupy a strategically important position near the western entrance to the Strait of Malacca.

The islands are geographically close to one of the world’s most important maritime chokepoints.

That gives India significant potential strategic value.

The region already matters for naval surveillance and maritime security.

As digital infrastructure expands, the strategic importance of the surrounding waters could increase further.

The undersea cable question therefore intersects with India’s broader Indo-Pacific strategy.

The Chokepoint Nobody Sees

People understand physical chokepoints such as the Strait of Hormuz and the Strait of Malacca.

But digital chokepoints are harder to see.

A cable landing station can become strategically important because it connects a country to the global internet.

A small number of cables may carry enormous amounts of international traffic.

If several systems converge around the same geographical area, that location can become disproportionately important.

This creates a new kind of vulnerability.

Countries can diversify cable routes.

But they cannot put cables everywhere.

The ocean is enormous.

Cable construction is expensive.

Repair requires specialised ships.

And landing stations require physical infrastructure on shore.

Repairing a Broken Cable Is Not Simple

A cable break does not necessarily mean technicians can fix it immediately.

First, the location of the failure must be identified.

A specialised cable repair vessel may then have to travel to the area.

The cable has to be located on the seabed.

A section may be brought to the surface.

The damaged portion is removed.

A replacement section is installed.

The repaired cable is then returned to the seabed.

This can take time.

And in strategically sensitive waters, access itself can become an issue.

What Happens During a Crisis?

Imagine a hypothetical crisis in the Indo-Pacific.

Several undersea cables suddenly stop working.

Internet traffic is automatically rerouted through remaining systems.

At first, ordinary users may notice little.

But network congestion begins increasing.

Financial institutions experience delays.

Businesses lose redundancy.

Cloud providers shift traffic.

Engineers begin investigating.

Then another cable fails.

Suddenly the question changes.

Was the first failure an accident?

Or was it deliberate?

This is where a technical incident could become a geopolitical crisis.

The Attribution Problem

The hardest question in any cable sabotage scenario would be attribution.

Who did it?

A state?

A private company?

A fishing vessel?

An accident?

A criminal organisation?

A natural event?

The ocean provides enormous physical space in which activities can go unnoticed.

That creates opportunities for plausible deniability.

A government could potentially deny involvement.

And without strong evidence, other countries may hesitate to respond.

That makes undersea infrastructure particularly relevant to grey-zone warfare.

The Economic Consequences Could Be Massive

The global economy has become dependent on instantaneous communications.

International banking depends on networks.

Financial exchanges depend on low-latency data.

Multinational companies rely on cloud infrastructure.

International logistics depends on digital communication.

Even ordinary services increasingly depend on data travelling internationally.

This means a serious disruption would not remain confined to telecommunications companies.

It could eventually affect the wider economy.

The most vulnerable countries would not necessarily be those with the fewest cables.

They could be countries with insufficient redundancy.

The Race for Redundancy

The solution is relatively simple in theory.

Build more cables.

Create more routes.

Avoid concentrating too much traffic in one geographical area.

Develop domestic data centres.

Strengthen cable repair capabilities.

Improve surveillance.

But all of these solutions cost money.

And the cables themselves are becoming longer as countries seek more diverse routes.

The result is an infrastructure race beneath the oceans.

Satellites Are Not a Simple Replacement

One might assume satellites could solve the problem.

They cannot completely replace submarine cables.

Satellites are extremely useful for remote communications, navigation and backup connectivity.

But fibre-optic cables can carry enormous volumes of data with extremely low latency.

For global internet traffic, submarine cables remain indispensable.

That means even a world filled with satellite internet would still have a strong interest in protecting the seabed.

The New Undersea Arms Race

The next stage may involve more than cables.

Countries are developing technologies capable of monitoring the ocean floor.

Underwater drones could potentially inspect infrastructure.

Sensors could detect unusual activity.

Autonomous underwater vehicles could patrol strategic areas.

Navies could integrate seabed monitoring into broader maritime surveillance systems.

This creates the possibility of a new undersea security environment.

The ocean floor may eventually become as monitored as other strategic domains.

What This Means for China and the US

For Washington, the priority is protecting critical infrastructure and preventing strategic dependence on Chinese-controlled technology.

For Beijing, connectivity is both an economic opportunity and an element of technological influence.

Neither side is likely to abandon global digital connectivity.

Instead, they may increasingly build competing technological ecosystems.

This could produce a fragmented digital world.

Different standards.

Different suppliers.

Different cable networks.

Different security requirements.

And potentially different internet architectures.

Europe Is Already Learning the Lesson

Europe’s experience with energy infrastructure has changed the way governments think about critical infrastructure.

The destruction of the Nord Stream pipelines demonstrated that infrastructure beneath the sea can become a geopolitical target with consequences far beyond the immediate area.

The subsequent concern over subsea cables has expanded the discussion from energy security to digital security.

A damaged pipeline affects energy.

A damaged communications cable can affect information.

And information is now an essential economic resource.

The Ocean Is Becoming a Battlefield Without a War

This is perhaps the most important development.

Countries do not need to fire missiles to compete beneath the ocean.

They can conduct surveillance.

Build infrastructure.

Monitor shipping.

Develop underwater drones.

Expand cable networks.

Secure landing stations.

Create alternative routes.

And gather intelligence.

The result is competition without conventional warfare.

That is precisely what makes it dangerous.

What Should India Do?

India has several reasons to strengthen its undersea infrastructure strategy.

First, diversify international cable routes.

Second, increase domestic cable repair capacity.

Third, strengthen monitoring around important cable corridors.

Fourth, improve cooperation with countries in the Indian Ocean.

Fifth, integrate cable security into India’s broader maritime-security planning.

And finally, develop stronger redundancy so that the failure of individual cables does not become a national crisis.

India’s digital ambitions require physical infrastructure capable of supporting them.

The Future May Depend on What We Cannot See

The next great geopolitical competition may not always be visible on television.

It may happen hundreds or thousands of metres below the surface.

There may be no explosion.

No fighter aircraft.

No declaration of war.

Just a cable going dark.

And then another.

That is why undersea cables deserve far more attention than they currently receive.

They are not simply pieces of telecommunications infrastructure.

They are part of the physical foundation of the global economy.

Conclusion

The world has spent decades building a digital civilisation on top of a physical network that most people never think about.

That network runs across the seabed.

Undersea cables connect continents, financial centres, technology companies, governments and billions of people.

As geopolitical competition intensifies, those cables are becoming strategic assets.

Russia’s war with Ukraine has increased European concerns about subsea infrastructure.

The US-China rivalry is pushing telecommunications and technology deeper into national-security discussions.

India’s growing digital economy is increasing its dependence on secure international connectivity.

And the Indo-Pacific is emerging as one of the most strategically important regions for both maritime and digital infrastructure.

The danger is not that every broken cable represents an act of war.

Most failures do not.

The danger is that the world is becoming increasingly dependent on infrastructure that is difficult to monitor, expensive to repair and potentially vulnerable to deliberate interference.

The next major geopolitical crisis could therefore look very different from the wars of the past.

It might begin with something almost invisible.

A signal disappearing beneath the ocean.