Hope they played 'Eagle Squadron' by Kenneth Alford. Not played half enough anyway by RAF Bands, a cracking good march that celebrates USA pilots who served in the RAF in WW2, principally in the BofB. If we'd lost that then no US involvement in the liberation of Europe, including aid to the USSR. Without that the Great Patriotic War would most probably have been the Great Patriotic Defeat. Either way Europe would be under the jackboots of one tyranny or another still. Semper Fidelis!
Cue revisionist posts...