As British media was quick to blame Russia for hitting the positions of CIA-trained "moderate" Syrian rebels, Hammond came up with the following message:
"Russia must be clear w/ int'l community that it's targeting #ISIL or AQ-affiliated militias and not moderate #Syria opposition forces #UNGA," Hammond said on Twitter.
The Russian Embassy in Britain came back with a brilliant reply, quite possibly making Hammond regret his earlier jabs at Russia.
On Wednesday, Russia commenced precision airstrikes on ISIL targets in Syria. International law, as defined by the UN Charter, permits the use of force in a foreign country only if it has been authorized by the UN Security Council, as an act of self-defense, or at the request of the country's authorities.
Russia launched airstrikes on ISIL targets in Syria following a request from President Bashar Assad. Meanwhile, a US-led coalition, including Britain of course, has been bombing ISIL positions in Syria without the approval of the UN Security Council or the Syrian government for over a year now.