The geopolitical agenda is being shaped by three overlapping developments: the Trump–Xi summit in Washington, intensifying Russia–Ukraine drone and infrastructure warfare, and a widening Middle Eastern conflict affecting Iran, Saudi Arabia, Yemen and critical maritime routes. At the same time, developments in Greenland point to the growing strategic importance of the Arctic.

1. Trump–Xi Summit: U.S.–China Competition Moves to the Highest Level

Chinese President Xi Jinping arrived in Washington on 23 September for his state visit and was personally greeted at Joint Base Andrews by U.S. President Donald Trump. The two governments had already agreed to extend their trade truce until January. Their discussions are expected to encompass trade, tariffs, artificial intelligence, rare earths, Taiwan and wider geopolitical issues.

The meeting is significant because U.S.–China competition increasingly extends across several interconnected areas. Trade policy can affect technology supply chains; semiconductor and AI restrictions have national-security implications; rare-earth supplies affect industrial and defence production; and Taiwan remains a central security dispute.

There are also early signs of attempts to establish safeguards around emerging technologies. U.S. and Chinese security experts involved in a dialogue informing official discussions have proposed measures including maintaining human control over consequential military actions, protecting nuclear command systems from autonomous AI and establishing communications mechanisms for AI-related incidents. These remain proposals rather than an agreed bilateral framework.

Geopolitical significance: The summit is therefore less about eliminating U.S.–China strategic competition than about determining whether the two powers can establish mechanisms that reduce the risk of economic, technological or military competition escalating uncontrollably.

2. Taiwan Demonstrates Greater Integration of Drones into Conventional Warfare

Taiwan recently conducted military exercises combining attack drones with conventional weapons for the first time. The exercises also involved anti-air, anti-ship and anti-landing missiles, while further drills are expected to incorporate U.S.-made HIMARS rocket systems and Stinger missile simulators.

The timing is important because Taiwan remains one of the central strategic issues between Washington and Beijing. China claims Taiwan and has not renounced the use of force, while the United States remains Taiwan’s principal source of advanced military equipment.

The exercises also demonstrate a wider transformation in warfare. Taiwan is incorporating unmanned systems alongside conventional precision weapons rather than treating drones as independent capabilities.

Geopolitical significance: Ukraine has demonstrated how relatively inexpensive unmanned systems can alter surveillance, targeting, logistics and strike operations. Taiwan’s adoption of similar concepts indicates that these lessons are increasingly influencing military planning in the Indo-Pacific.

3. Ukraine: Russia’s Jet-Powered Drones Create a New Air-Defence Problem

Russia’s growing use of jet-powered attack drones is putting additional pressure on Ukraine’s air-defence network. The newer drones can operate at altitudes of roughly four to seven kilometres and at considerably higher speeds than earlier propeller-powered Shahed variants.

According to Ukrainian officials, Ukraine is intercepting roughly 60% of the jet-powered drones, compared with interception rates above 90% for earlier models. During the first three weeks of September, Russia launched around 2,100 jet-powered attack drones and 136 missiles at Ukraine. Moscow denies deliberately targeting civilians.

Russia has increasingly attacked economically important infrastructure including Black Sea grain ports, railways, warehouses, logistics networks and steel facilities. A further Russian drone attack on Kyiv on 23 September struck railway infrastructure, warehouses and fuel stations.

Geopolitical significance: The campaign demonstrates how the boundary between relatively inexpensive drones and traditional cruise missiles is narrowing. It also shifts part of the conflict from destruction of battlefield forces towards the systematic degradation of the opponent’s economic and logistical capacity.

4. Russia–Ukraine Energy Warfare Becomes Increasingly Strategic

Ukraine has simultaneously expanded attacks against Russian economic infrastructure, particularly oil refineries and fuel facilities. Russia has had to increase expenditure on air defence and measures addressing fuel shortages created partly by Ukrainian attacks on refineries, ports and other infrastructure.

Attempts are nevertheless being made to establish some form of limited ceasefire covering energy infrastructure.

Geopolitical significance: Energy infrastructure has become a strategic weapon for both sides. Russian attacks can affect Ukraine’s ability to sustain its economy and civilian population through winter, while Ukrainian attacks on Russian refining and fuel infrastructure impose economic costs and can affect Russia’s ability to finance and sustain military operations.

The consequences extend beyond the battlefield because Russian energy production remains connected to international oil and fuel markets.

5. Yemen and Bab el-Mandeb Emerge as a Major Strategic Pressure Point

The renewed conflict involving Yemen’s Iran-aligned Houthis and Saudi-backed forces is becoming increasingly important because of Houthi advances along Yemen’s Red Sea coastline towards the Bab el-Mandeb Strait.

The humanitarian consequences are already considerable. The UN migration agency reported that at least 112,000 people had been displaced inside Yemen within two weeks, while thousands had crossed the Gulf of Aden towards Djibouti.

The military developments have much wider consequences because Bab el-Mandeb connects the Red Sea and Suez Canal with the Indian Ocean. Petroleum volumes passing through the strait represented about 7% of global oil output in June. Italy has consequently called for a stronger naval presence to protect merchant shipping.

Geopolitical significance: The Middle Eastern confrontation is increasingly intersecting with two critical maritime routes — the Strait of Hormuz and Bab el-Mandeb. Disruption of either can affect energy prices and shipping; simultaneous instability affecting both routes creates a substantially larger strategic problem.

6. Middle East Conflict Increasingly Affects Global Energy Flows

Energy markets are reflecting the interaction between the Iran conflict, Houthi attacks and disruption of Saudi export routes.

Saudi Arabia has increased some oil shipments through the Strait of Hormuz after attacks affected its East-West pipeline and shipments through Yanbu. Saudi crude moving through Hormuz recently averaged about 2.9 million barrels per day, substantially above August levels.

This creates an unusual strategic situation. Saudi Arabia’s East-West pipeline was designed partly to reduce dependence on Hormuz, but disruption around the Red Sea can force more exports back towards the Gulf route.

Geopolitical significance: Hormuz and Bab el-Mandeb cannot be viewed independently. Pressure on one route can redirect energy flows towards the other. Instability affecting both simultaneously therefore increases the vulnerability of global energy supply chains.

7. Greenland Agreement Strengthens the Arctic Dimension of NATO Security

The United States, Denmark and Greenland have reached a new security agreement expanding the potential American military presence on Greenland. The arrangement builds upon longstanding U.S. access rights while strengthening restrictions on military bases and sensitive investments by non-NATO countries.

Plans have also been reported for the United States to re-establish a Cold War-era base in southern Greenland and establish another facility, although implementation details remain important.

Greenland’s government has welcomed aspects of the agreement, although public trust remains affected by the earlier dispute over U.S. ambitions regarding the territory.

Geopolitical significance: Greenland occupies a strategically important position between North America, Europe and the Arctic. Its importance encompasses missile warning, air and maritime access, North Atlantic reinforcement routes and critical minerals. The agreement therefore represents part of the broader return of the Arctic as an area of major-power strategic competition.

Overall Geopolitical Picture

Four broader trends connect these developments.

Major-power competition is increasingly multidimensional. The U.S.–China relationship now links conventional military security with tariffs, artificial intelligence, semiconductors, rare earths and supply-chain resilience. Economic policy and national-security policy are becoming progressively harder to separate.

Drone warfare is moving rapidly into the mainstream of military operations. Russia’s jet-powered systems and Taiwan’s integration of attack drones with conventional weapons illustrate different parts of the same transformation. The key contest is increasingly between cheap, numerous unmanned systems and the cost and availability of systems required to detect and destroy them.

Economic infrastructure has become part of the battlefield. Refineries, ports, railways, energy networks and supply chains are being targeted or placed under pressure in both Eastern Europe and the Middle East. The distinction between military operations and economic warfare is consequently becoming less clear.

Maritime and geographic chokepoints are gaining strategic importance. Hormuz, Bab el-Mandeb, the Black Sea and increasingly the Arctic connect regional military developments with global trade, energy and supply chains. This means comparatively localized conflicts can produce disproportionately large international economic effects.

Global Geopolitics Brief — 24 September 2026