Tens of thousands of Israelis gathered outside the parliament building in Jerusalem on Sunday in the largest anti-government demonstration since the country went to war in October. They urged the government to reach a cease-fire deal to free dozens of hostages held by the Hamas militant group in Gaza and to hold early elections. Israeli society was broadly united immediately after Oct. 7, when Hamas killed some 1,200 people during a cross-border attack and took 250 others hostage.