A battle ensign is the name given to a large war ensign (flag) hoisted on a warship's mast just before going into battle
https://twitter.com/USNavy/status/1312844975927963648?s=20
Nothing like a sunset at sea. ⚓ Sunrise
#USNavy's USSSterett steams with its “Battle Ensign” in the Arabian Gulf. Sterett is part of the Nimitz Carrier Strike Group and is deployed to
@US5thFleet
to help ensure maritime stability and security in the Central Region.