The Biden administration in recent days quietly authorized the transfer of billions of dollars in bombs and fighter jets to Israel despite Washington’s concerns about an anticipated military offensive in southern Gaza that could threaten the lives of hundreds of thousands of Palestinian civilians.

The new arms packages include more than 1,800 MK84 2,000-pound bombs and 500 MK82 500-pound bombs, according to Pentagon and State Department officials familiar with the matter. The 2,000 pound bombs have been linked to previous mass-casualty events throughout Israel’s military campaign in Gaza. These officials, like some others, spoke to The Washington Post on the condition of anonymity because recent authorizations have not been disclosed publicly.

The 2,000 pound bombs, capable of leveling city blocks and leaving craters in the earth 40 feet across and larger, are almost never used anymore by Western militaries in densely populated locations due to the risk of civilian casualties.