Earlier this year the annual multi-national cold weather exercise hosted by Norway attracted the participation of the US for the first time since 2005.
Some of the operations took place on the northern Swedish coastline where cooperation between US high-speed assualt boats was met by support from the Austrian Army.
Austrian Army Kiowa supports US assault boat in 2010 cold weather exercise. (I don't think the Austrians get over the water very often which might be why the co-pilot is taking photos!).
YBB