DUBAI, United Arab Emirates — Iran’s supreme leader on Saturday threatened Israel and the U.S. with “a crushing response” over attacks on Iran and its allies. Ayatollah Ali Khamenei spoke as Iranian officials are increasingly threatening to launch yet another strike against Israel after its Oct. 26 attack on the Islamic Republic that targeted military bases and other locations and killed at least five people. [time-brightcove not-tgx=”true”] Any further attacks from either side could engulf the wider Middle East, already teetering over the Israel-Hamas war in the Gaza Strip and Israel’s ground invasion of Lebanon, into a wider regional conflict just ahead of the U.S.