China is increasing pressure on Japan through escalating export controls, adding twenty Japanese entities to its restricted list this week. This action is part of a seven-month pattern of retaliation from Beijing, stemming from an unspecified grievance, and leaves Japan feeling unsupported. The situation presents a challenge for the United States, currently focused on the war in Ukraine, as it attempts to balance its commitments to both Japan and managing relations with China. Analysts suggest Washington is struggling to effectively navigate this complex dynamic. The increased tensions are further destabilizing an already fraught geopolitical landscape in the region. This ongoing dispute tests the strength of the US-Japan alliance and highlights the growing assertiveness of China.