Royal Navy Type 45 destroyer HMS Dragon ( D35) fires a 4.5 inch (114mm) gun, a 30mm cannon and vulcan phalanx 20mm cannon in the surface role using a floating target to simulate an attacking enemy as part of the exercise At-Sea Demo/Formidable Shield 2021, May28, 2021. At-Sea Demo/Formidable Shield, conducted by Naval Striking and Support Forces NATO on behalf of U.S. Sixth Fleet, is a live-fire integrated air and missile defense (IAMD) exercise that improves Allied interoperability using NATO command and control reporting structures. (Royal Navy Photo by Jim Gibson)