U.S. President Joe Biden has announced over $8 billion in military aid to Ukraine, during President Volodymyr Zelenskyy's visit to Washington. The aid aims to bolster Ukraine’s defense against Russia’s invasion. Key elements include air defense systems, unmanned aerial systems, and long-range missiles. Biden also pledged additional training for Ukrainian F-16 pilots. Despite bipartisan support, Zelenskyy has faced growing criticism from Republican leaders, including Donald Trump, over continued U.S. aid.