Go 'Greased Lightning!' Swedish Marines in Afghanistan Channel Their Inner John Travolta

This tank could be could be systematic, hydromatic, ultramatic! Swedish marines stationed in Afghanistan appear to have formed their own glee club. The military men go all out in this "Greased Lightning" parody. Men in uniform dancing? Check. Fabulous lip-synching? Check. Military equipment like you've never imagined it being used before? Check. Boys, you are supreme, the chicks’ll cream. Watch below to see the latest viral sensation, and let’s hope they’ll be back for more. Wonder if they’ve heard of a little show called The Full Monty…