Amid the death and destruction left behind by more than a year of war, Palestinians in the Abu Mustafa neighborhood of Khan Younis welcomed the first day of Ramadan early Saturday with a communal suhoor, a predawn meal that begins the daily fast.

Ramadan, the most sacred month of the Islamic calendar and a joyous time for Muslims around the world, comes during a time of growing uncertainty this year — following the expiration of the first phase of the ceasefire between Israel and Hamas,…