GAZA CITY, Gaza Strip (AP) — Israel unleashed a wave of airstrikes on Gaza, killing at least 10 people, including a senior militant. That’s according to Palestinian officials who spoke Friday. Israel says it targeted the Islamic Jihad militant group in response to an “imminent threat” following the recent arrest of another senior militant. Hours later, Palestinian militants launched a barrage of rockets as air-raid sirens wailed in Israel and the two sides drew closer to another all-out war. Islamic Jihad claimed to have fired 100 rockets. Israel and Gaza’s militant Hamas rulers have fought four wars and several smaller battles over the last 15 years.