Great-Power Rivalry Reshapes Asian Alliances and Sanctions

The fragmentation of the international order, driven by great-power rivalry, is simultaneously enabling North Korea to evade sanctions and driving closer cooperation between the European Union, Japan, and South Korea. This dual dynamic marks a significant shift from the post-Cold War consensus and forces allies to rethink their strategies.

North Korea's strategic advantage

For years, the U.S.-led sanctions regime relied on a united front with China and Russia. However, that consensus has collapsed. "Not only has North Korea found an economic lifeline to keep the regime running, but it has also gained a diplomatic free pass to expand its nuclear and missile programs without consequence" Source: Foreign Policy. While sanctions still impose costs, they are no longer sufficient to compel denuclearization.

Trilateral cooperation as a response

Simultaneously, the EU, Japan, and South Korea are deepening ties to address common challenges. "The trilateral is more feasible – and more important – than ever before" Source: The Diplomat. These include demographic decline, economic dependence on China, and U.S. policy volatility. The EU signed security partnerships with both Japan and South Korea in 2024, and launched a defense-industry dialogue with Japan Source: The Diplomat. However, the network remains uneven: EU-Japan ties are denser than EU-South Korea ties.

Converging challenges

Both articles highlight that the old assumptions are outdated. - Demographic pressure: South Korea, Japan, and the EU face aging populations that affect defense and economic capacity Source: The Diplomat. - Economic dependence: China's export controls on strategic materials have shown that interdependence can be weaponized . - The United States treated allies as bargaining chips in trade negotiations, signaling that alliance politics are now transactional .