The Pentagon has said it expected to hold new talks with Russia's military on pilot safety in Syria's war this weekend, as the former Cold War foes seek to avoid an accidental clash as they carry out rival bombing campaigns. Russia's entry into Syria's civil war last week has complicated America's more than year-old campaign of airstrikes against Daesh, leading to at least one US jet to course-correct to avoid an incident. The United States, which opposes Moscow's support for Syrian President Bashar al-Assad, has ruled out cooperation with Russia but has agreed to work on air safety procedures.