After finishing school, he enlisted in the United States Navy July 28, 1964 and upon completion of his training, joined Assault Craft Division Twelve for duty in Vietnam.

For conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty while serving with River Section 532, in combat against the enemy in the Republic of Vietnam.

While the PBR was making a high-speed run along the river bank, Seaman Ouellet spotted an incoming enemy grenade falling toward the boat.

He immediately left the protected position of his gun mount and ran aft for the full length of the speeding boat, shouting to his fellow crew members to take cover.

His extraordinary heroism and his selfless and courageous actions on behalf of his comrades at the expense of his own life were in the finest tradition of the United States Naval Service.