WASHINGTON (Reuters) – The United States imposed sanctions on Monday on Hamas-affiliated financial exchanges in Gaza, an Iraqi airline and backers of Iranian-linked militias in Iraq, accusing all of working with Iran’s Islamic Revolutionary Guard Corps Quds Force (IRGC-QF), an elite Iranian military and intelligence unit. The U.S. Treasury said it had imposed sanctions on Hamas-affiliated financial networks in Gaza and particularly financial facilitators that have played key roles in transferring funds, including cryptocurrency, from the Quds Force to Hamas, which carried out the Oct. 7 attack…