“We are writing now to underscore the US government’s deep concern over the deteriorating humanitarian situation in Gaza,” they wrote US officials earlier this year said Israel may have violated international humanitarian law using US-supplied weapons during its military operation in Gaza WASHINGTON: US Secretary of State Antony Blinken and Defense Secretary Lloyd Austin said Israel must take urgent steps to improve the humanitarian situation in Gaza to avoid legal action involving US military aid, according to news reports on Tuesday. “We are writing now to underscore the US government’s deep concern over the deteriorating humanitarian situation in Gaza, and seek urgent and sustained actions by your government this month to reverse this trajectory,” they wrote in an Oct. 13 letter to their Israeli counterparts, posted by an Axios reporter on X. The State Department and Pentagon did not immediately respond to a request for comment. Representatives for Israel’s government also could not be immediately reached for comment. The report comes as Israeli forces expand operations into northern Gaza amid ongoing concerns about access to humanitarian aid throughout the enclave and civilians’ access to food, water and medicine. US officials earlier this year said Israel may have violated international humanitarian law using US-supplied weapons during its military operation in Gaza. This week’s letter cited Section 620i of the Foreign Assistance Act, which restricts (prohibits) military aid to countries that impede delivery of US humanitarian assistance. It also cited a National Security Memorandum that US President Joe Biden issued in February that requires the State Department to report to Congress on whether it finds credible Israel’s assurances that its use of US weapons does not violate US or international law.