Late yesterday, the United States, with the participation or support of Bahrain, Jordan, Qatar, Saudi Arabia and the United Arab Emirates, launched airstrikes against ISIS positions in Syria. The Syrian government appears to have had no objections to the bombings. The United States also struck a little-known al Qaeda affiliate known as the Khorosan Group.
Read more at ABC News, The Independent, The Guardian, CNN and Reuters.
UPDATE: Meanwhile, from CBS News, a Syrian plane enters Israeli airspace and gets shot down.