Japan: Security

The United States, under President Trump, requested Japan send warships to help secure the Strait of Hormuz, a critical global oil shipping lane, before later reversing this request. This placed significant diplomatic pressure on Japan, with Prime Minister Sanae Takaichi stating Japan was not planning such an escort mission. In response to regional instability, Japan debated its options, authorizing troops for potential mine-clearing operations but stopping short of a naval commitment. Concurrent U.S. military actions against Iran, including the destruction of mine-laying vessels, contributed to a spike in global oil prices, impacting Japanese gasoline costs and financial markets. Iranian officials separately stated readiness to ensure the safe passage of Japanese ships through the strait.

On its regional security posture, Japan confirmed a Kongo-class destroyer can now fire Tomahawk cruise missiles, extending its combat range as part of broader deterrence efforts. The nation also began deploying its first homegrown long-range missiles to a Ground Self-Defense Force camp, marking a shift toward a 'counterstrike capability.' These developments drew criticism from North Korea and China, with China's Defense Ministry issuing a warning and its coast guard expelling a Japanese boat from waters around the Diaoyu Islands. Separately, North Korea launched multiple ballistic missiles amid U.S.-South Korea exercises.

Domestically, a Japanese Ground Self-Defense Force officer was arrested for allegedly breaking into the Chinese embassy in Tokyo with a knife, an incident Japanese authorities called 'extremely unusual and serious' and which prompted a formal protest from China. In unrelated legal matters, a Japanese man was convicted in a U.S. court for nuclear material trafficking, and two Japanese nationals were detained in Iran, with one subsequently released.