Assisting Israel: The United States is becoming further entangled in Israel’s fights. News broke over the weekend that our military is sending Israel an advanced missile system called the Terminal High Altitude Area Defense system, or THAAD—along with 100 American troops to help operate it. Israel is still weighing possible responses to Iran’s barrage of ballistic missiles two weeks ago, which Iran says was retribution for Israel’s killing of Hezbollah leader Hassan Nasrallah (in September) and Hamas political leader Ismail Haniyeh (in July). Iran also attacked Israel in April; both then and i…