One of 3 HMX-1 Ospreys which arrived the previous evening to support President Obama's visit to the UK. 168339/12 is parked behind. The third is 168332/10.
One of three MV-22B (or are they VV-22B's?) sits on the tarmac at Paine Field waiting for the arrival of POTUS and his press corps to take them to Oso, Washington to tour the devastation caused by a recent landslide in the area.