Allied High Command

From Memory Alpha, the free Star Trek reference

The Allied High Command (AHC) was the military command of the Allies of World War II on Earth.

In a holoprogram set in France of 1944, the AHC relayed a message to the French Resistance cell of Sainte Claire via a British weather report and ordered them to disable German communications to help an upcoming US attack on the village. (VOY: "The Killing Game")