OK, we all know that USMC stands for the honorable "United States Marine Corps" and some people refer to them as "Uncle Sam's Misguided Children". However, in early 1987 there was a
big scandal where one or two security guards at the
U.S. embassy in Moscow,
U.S.S.R. were caught being involved in an espionage ring and security breach, and one or more of the guards (who were United States Marines) were in a sexual relationship with a
Russian female agent. They were court-martialed and for a while "USMC" was an abbreviation for "Under Seduction of Moscow's Cunt". This occured
even while Reagan and Gorbechev were in a state of friendly dialog and Cold War tensions were lessening.
This USMC/embassy mess did not
stop the talks between the
U.S.A. and the
U.S.S.R. from continuing. The Cold War ended peacefully a few years later and the incident was largely forgotten.