Israeli warplanes unleashed another wave of heavy airstrikes on the Gaza Strip Monday, destroying about 60 miles of militant tunnels and the homes of nine Hamas commanders — and also killing a senior Islamic Jihad leader, the military said. IDF spokesman Lt. Col. Jonathan Conricus told reporters Monday that it had assassinated Hussam Abu Harbeed, who commanded Islamic Jihad’s northern Gaza brigade and led attacks against Israeli soldiers and civilians for almost 15 years. In a statement, the IDF said Harbeed “was behind several anti-tank missile terror attacks against Israeli civilians.” One of those attacks occurred on the first day...