During a firefight on that day, in Bình Dương Province, Republic of Vietnam, Fleek used his helmet to scoop up an enemy-thrown hand grenade.

[2] Sergeant Fleek's official Medal of Honor citation reads: For conspicuous gallantry and intrepidity in action at the risk of his life above and beyond the call of duty.

Fleek's unit was deployed in ambush locations when a large enemy force approached the position.

Fleek, although in a position to seek cover, shouted a warning to his comrades and threw himself onto the grenade, absorbing its blast.

Fleek's gallantry and willing self-sacrifice were in keeping with the highest traditions of the military service and reflect great credit on himself, his unit, and the U.S.