Increased Israeli airstrikes are devastating parts of the Gaza Strip, jeopardizing relief operations and leaving neighborhoods in shambles. A strike in the Nusseirat refugee camp on Wednesday killed several family members of one of Al Jazeera TV's chief correspondents, Wael Dahdouh. Strikes elsewhere destroyed homes and businesses and left many digging through the debris. Health care facilities are doing their best to treat the wounded, but with supplies that are becoming scarce. The U.N. agency for Palestinian refugees says its relief operations across the Gaza Strip will need to be curtailed amid the airstrikes. The war, in its 19th day,...