America's military strategy in Iraq was thrown into confusion Monday as the Pentagon admitted a letter from a general informing the Iraqi government of an imminent US troop pullout was sent by "mistake". As quoted by afp.comon Tuesday the latest developments came as a sea of black-clad mourners in Tehran paid homage to Qasem Soleimani, the head of the Iranian Revolutionary Guards' Quds Force who was killed in a US strike in Iraq on Friday. US Brigadier General William Seely informed his Iraqi counterparts in a letter dated Sunday that American troops were preparing to leave Iraq. Seely said the US-led coalition would be repositioning forces. The letter also stated that in order to conduct this task, Coalition Forces are required to take certain measures to ensure that the movement out of Iraq is conducted in a safe and efficient manner. It said helicopters would be traveling in and around Baghdad's Green Zone where the US embassy is located as part of the preparations. AFP could hear helicopters flying low over Baghdad throughout the night on Monday. But Pentagon Joint Chiefs Chairman Mark Milley said on Monday the letter was a mere draft and should not have been sent. (AFP)