WASHINGTON (Reuters) -Former U.S. Marine Trevor Reed has arrived back in the United States, his spokesperson said on Thursday, after being freed by Russia in a prisoner swap carried out amid fraught relations between the two countries over the war in Ukraine. Local television reported that Reed, from Texas, arrived in San Antonio early on Thursday. Reed, 30, was released on Wednesday on an airport tarmac in Ankara, Turkey, in exchange for Russian pilot Konstantin Yaroshenko. The swap was not part of broader diplomatic talks and did not represent an American change in approach on Ukraine, U.S. …