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WASHINGTON — The Biden administration said Friday that Israel's use of U.S.-provided weapons in Gaza likely violated international humanitarian law, but wartime conditions prevented U.S. officials from determining that for certain in specific airstrikes.
The finding of "reasonable" evidence to conclude that the U.S. ally had breached international law in its conduct of the war in Gaza, released in a summary of a report being delivered to Congress on Friday, represents the strongest such statement from Biden officials.
But the caveat that the U.S. was unable immediately to link specific U.S. weapons to individual strikes by Israeli forces in Gaza could give the administration leeway in any future decision on whether to restrict provisions of offensive weapons to Israel.
The first-of-its-kind assessment, which was compelled by President Joe Biden's fellow Democrats in Congress, comes after seven months of airstrikes, ground fighting and aid restrictions that have claimed the lives of nearly 35,000 Palestinians, mostly women and children.
While U.S. officials were unable to gather all the information they needed on specific strikes, "given Israel's significant reliance on U.S.-made defense articles, it is reasonable to assess that defense articles ... have been used by Israeli security forces since Oct. 7 in instances inconsistent with its (international humanitarian law) or with established best practices for mitigating civilian harm," the report said, using an abbreviation for international humanitarian law.
While Israel's military has the experience, technology and know-how to minimize harm to civilians, "the results on the ground, including high levels of civilian casualties, raise substantial questions as to whether the (international humanitarian law) is using them effectively in all cases," the report said.
Biden has tried to walk an ever-finer line in his support of Prime Minister Benjamin Netanyahu's war against Hamas. He has faced growing rancor at home and abroad over the Palestinian death toll and the onset of famine, caused in large part by Israeli restrictions on the movement of food and aid into Gaza. Tensions have been heightened further in recent weeks by Netanyahu's pledge to expand the Israeli military's offensive in the crowded southern city of Rafah, despite Biden's adamant opposition.
Biden is in the closing months of a tough reelection campaign against former President Donald Trump. He faces demands from many Democrats that he cut the flow of offensive weapons to Israel and denunciation from Republicans who accuse him of wavering on support for Israel at its time of need.
The Democratic administration took one of the first steps toward conditioning military aid to Israel in recent days when it paused a shipment of 3,500 bombs out of concern over Israel's threatened offensive on Rafah, a southern city crowded with more than a million Palestinians, a senior administration official said.
The presidential directive, agreed to in February, obligated the Defense and State departments to conduct "an assessment of any credible reports or allegations that such defense articles and, as appropriate, defense services, have been used in a manner not consistent with international law, including international humanitarian law."
The agreement also obligated them to tell Congress whether they deemed that Israel has acted to "arbitrarily to deny, restrict, or otherwise impede, directly or indirectly," delivery of any U.S.-supported humanitarian aid into Gaza for starving civilians there.
Lawmakers and others who advocated for the review said Biden and previous American leaders have followed a double standard when enforcing U.S. laws governing how foreign militaries use U.S. support, an accusation the Biden administration denies. They had urged the administration to make a straightforward legal determination of whether there was credible evidence that specific Israeli airstrikes on schools, crowded neighborhoods, medical workers, aid convoys and other targets, and restrictions on aid shipments into Gaza, violated the laws of war and human rights.
Their opponents argued that a U.S. finding against Israel would weaken it at a time it is battling Hamas and other Iran-backed groups. Any sharply critical findings on Israel are sure to add to pressure on Biden to curb the flow of weapons and money to Israel's military and further heighten tensions with Netanyahu's government over its conduct of the war against Hamas.
Any finding against Israel also could endanger Biden's support in this year's presidential elections from some voters who keenly support Israel.
At the time the White House agreed to the review, it was working to head off moves from Democratic lawmakers and independent Sen. Bernie Sanders of Vermont to start restricting shipments of weapons to Israel.
Israel launched its offensive after an Oct. 7 assault into Israel, led by Hamas, killed about 1,200 people. Two-thirds of the Palestinians killed in the war since then have been women and children, according to local health officials. U.S. and U.N. officials say Israeli restrictions on food shipments since Oct. 7 have brought on full-fledged famine in northern Gaza.
Israel says it is following all U.S. and international law, that it investigates allegations of abuse by its security forces and that its campaign in Gaza is proportional to the existential threat it says is posed by Hamas.
Biden in December said "indiscriminate bombing" was costing Israel international backing. After Israeli forces killed seven aid workers from the World Central Kitchen in April, the Biden administration for the first time signaled it might cut military aid to Israel if it didn't change its handling of the war and humanitarian aid.
A report to the Biden administration by an unofficial, self-formed panel including military experts, academics and former State Department officials detailed Israeli strikes on aid convoys, journalists, hospitals, schools and refugee centers and other sites. They argued that the civilian death toll in those strikes — such as an Oct. 31 strike on an apartment building reported to have killed 106 civilians — was disproportionate to the blow against any military target.
