JERUSALEM — President Biden is set to address the Gaza-Israel war at 1 p.m. Eastern time on Tuesday as the United States rushes to deliver military aid to Israel amid the deepening conflict. Israeli Defense Minister Yoav Gallant said there would be a “full siege” of Gaza after the Hamas militant group launched an unprecedented incursion over the weekend. The death toll since Saturday’s assault is around 1,600, and the number of people wounded has surpassed 6,000. At least 11 American citizens are among those killed, and more are unaccounted for — including some who are probably being held hostage by Hamas, Biden said Monday. The families of more than 100 Israelis thought to be held captive inside Gaza face an anxious wait, with Hamas threatening to execute civilian hostages in response to the Israeli airstrikes.