geopolitics

Russia is so large that when the sun rises over its Pacific coast, much of the country is still in the previous day. At about 17 million square kilometres it covers more than an eighth of all the land on Earth — bigger than the surface of Pluto — and stretches across eleven time zones. The ranking of the world's biggest countries is a story of empires, frozen frontiers, and a map projection that quietly lies about who's really biggest.

China has the world's largest military by active personnel — approximately 2,035,000 active-duty service members as of 2024, according to IISS Military Balance estimates. India ranks second at roughly 1,476,000, the United States third at approximately 1,316,000. North Korea and Russia complete the top five. But personnel count is only one dimension of military capability: the United States spends more on defense than the next ten countries combined, and technology, doctrine, and logistics matter as much as headcount. This ranking covers the top 20 countries by active military personnel using IISS Military Balance 2024 and SIPRI data, with methodology, spending comparison, and caveats.

War is driven by miscalculation, misperception, and the fog of conflict. What if AI removed all three — would peace be the result, or just a different kind of violence?

The US leads global AI investment by a massive margin, but Saudi Arabia and UAE are now committing percentages of GDP that rival Silicon Valley.

The US and China dominate global AI R&D, but Europe and Asia-Pacific are closing the gap fast.

The global arms trade reached approximately $134 billion in 2023 and is growing. This ranking of the top 10 countries that export the most weapons covers market share, key systems exported, and the geopolitical alliances that define the global arms market.

Global defence spending hit a record $2.72 trillion in 2024 and continues to climb in 2025. This ranking covers the top 20 biggest military budgets, their share of GDP, and what each country is actually buying with that money.

Foreign basing is one of the clearest expressions of a country's global reach, but no two lists count it the same way. Here is what is documented for the United States, United Kingdom, France, Russia, China, Turkey, and others, and why the totals differ so much.

China and Russia each share land borders with 14 other countries — more than any other nations on Earth. Brazil borders 10. This ranking examines how shared borders shape geopolitics, trade, conflict, and diplomacy — and what it means to be the world's most neighbour-rich countries.

Nine countries possess nuclear weapons in 2025. Russia leads with approximately 5,580 warheads; the United States has 5,044. Together they hold over 87% of all warheads on earth. China is the fastest-growing nuclear power, having added roughly 100 warheads per year since 2023. And the arms control architecture that managed US-Russian competition for five decades has effectively collapsed.

The bombs dropped on Hiroshima and Nagasaki fissioned less than a kilogram of material each. Modern warheads are larger, but not a thousand times larger. Here is the physics, the arms-control record, and the evidence for and against the explanations of why none has been used in war since.

For 30 years, the world got more connected. Trade barriers fell, supply chains stretched across continents, and goods flowed freely. Now the trend is reversing. Tariffs are rising, supply chains are being reshored, and geopolitical blocs are forming. Here's why deglobalisation is happening and what it means for prices, jobs, and geopolitics.