Operation High Noon was a medium-scale Free Western offensive launched from Mexico (which had mysteriously allied with the F.W.A.) against Enclave troops in the Southern USA. The aim of the attack was to put pressure on Enclave troops, forcing the Space Nazis to come to their aid and remove forces from Germany. It involved simultaneous attacks on Las Vegas and Forth Worth concurrent with the Battle of the Bulge. The FWA expedition arrived in Las Vegas on January 25, linking up with Coruscanti forces.
It saw the first appearance of the new British Centurion tank.
Any similarity to Operation August Storm is entirely coincidental.