BEIRUT — American antitank missiles supplied to Syrian rebels are playing an unexpectedly prominent role in shaping the Syrian battlefield, giving the conflict the semblance of a proxy war between the United States and Russia, despite President Barack Obama’s express desire to avoid one. The U.S.-made BGM-71 TOW missiles were delivered under a two-year-old covert program coordinated between the United States and its allies to help vetted Free Syrian Army groups in their fight against President Bashar al-Assad. Now that Russia has entered the war in support of Assad, they are taking on a greater significance than was originally intended. […]
