Tens of thousands of pro-Palestinian activists marched Saturday from Washington to Milan to Paris, demanding an end to Israel’s bombardment of Gaza. The marches showed growing concern about the rising civilian mortality toll and suffering caused by the Israel-Hamas conflict. Protesters, particularly in Muslim-majority nations such as the United States, the United Kingdom, and France, expressed dissatisfaction with their governments’ backing for Israel as its assault of hospitals and residential areas in Gaza intensifies. According to the Hamas-run Health Ministry in Gaza, the Palestinian death toll in the Israel-Hamas conflict has risen to 9,448. More than 1,400 people have been...