[Sobieski at Kahlenberg Mtn.]

But Biden’s handlers apparently thought it would be better to stage the boss’s dark rhetoric with blood-red lighting and shadowy Marines standing at attention, suggesting a cross between the 6th circle of Hell and a Fidel Castro rally.” Paula Boyard PJ Media

[xone]

shadowy Marines standing at attention,

They aren't at 'attention', what position it is so far is unknown. A modified form of 'rest' at least. Maybe 'grenade; rest'.