Over the last several years, figuring out whose side America is fighting on in both Iraq and Syria has not always been easy, but in recent weeks that task has become impossible. Instead of hedging bets on a prospective victor in the conflicts raging in either country, the US is apparently content to back all sides. Shipments of American weapons to Syrian Kurds began Wednesday, fulfilling plans announced earlier this month. While the Pentagon refuses to disclose what weapons they are sending, officials familiar with the shipments say they will likely involve a few armored vehicles, light...