In international relations, military aid is when one country provides military resources to another, and defense spending indicates a nation's security commitment. Following the US halting aid to Ukraine, European Union leaders convened to bolster defense and support Ukraine. - EU leaders met in Brussels to discuss increasing defense spending. - The decision to increase defense spending follows the US halting aid to Ukraine under the Trump administration. - The EU aims to ensure continued support for Ukraine despite the US shift. - The Trump administration signaled that Europe should take greater responsibility for its own defense. - The EU is a political and economic alliance of 27 member states.