U.S. Secretary of State Antony Blinken and Defense Secretary Lloyd Austin have urged Israel to take immediate action to improve the humanitarian situation in Gaza or risk legal action involving U.S. military aid. In a letter to their Israeli counterparts, the U.S. officials expressed deep concern over the deteriorating conditions in Gaza and called for urgent and sustained actions to reverse the situation. The United States has warned Israel that it needs to address the catastrophic conditions among Palestinian civilians in Gaza and stop intensifying suffering by limiting aid deliveries. The letter cited relevant sections of the Foreign Assistance Act and a National Security Memorandum issued by President Joe Biden that require Israel to ensure its use of U.S. weapons complies with U.S. and international law.