It’s a Soviet era aircraft.
—
So is the F-15, F16, & F-18
all of which, including the SU-30, have been modernized and upgraded. The B-52 dropped bombs in the Korean War ...
Vietnam, not Korea.
I believe the Korean armistice was signed in July 1953, and (IIRC) B-52s weren't actually operational until the late in the following year. Pretty amazing aircraft, to be in service so long!
;^)