The Fifth Ranger Infantry Battalion activated September 1, 1943 at Camp Forrest, TN commanded by Lieutenant Colonel Max Schneider , former executive officer of the 4th Ranger Battalion , was part of the provisional Ranger Assault Force commanded by Colonel Rudder . It landed on Omaha Beach with three companies of the 2nd Ranger Battalion , A, B and C, where elements of the 116th Regiment of the 29th ID were pinned down by murderous cross fire and mortars from the heights above. It was there that the situation was so critical that General Omar Bradley was seriously considering redirecting reinforcements to other areas of the beachhead. And it was then and there that General Norman Cota , Assistant Division Commander of the 29th Division, gave the now famous order that has become the motto of the 75th Ranger Regiment: "Rangers, Lead The Way!"

The Fifth Battalion Rangers broke across the sea wall and barbed wire entanglements, and up the pillbox-rimmed heights under intense enemy machine-gun and mortar fire and with A and B Companies of the 2nd Battalion and some elements of the 116th Infantry Regiment, advanced four miles to the key town of Vierville, thus opening the breach for supporting troops to follow-up and expand the beachhead. Meanwhile C Company of the 2nd Battalion, due to rough seas, landed west of the Vierville draw and suffered 50 percent casualties during the landing, but still scaled a 90-foot cliff using ropes and bayonets to knock out a formidable enemy position that was sweeping the beach with deadly fire.

The Fifth Battalion with elements of the 116th Regiment finally linked up with the beleaguered 2nd Battalion on D+3, although Lieutenant Charles Parker of A Company, 5th Battalion, had penetrated deep behind enemy lines on D Day and reached the 2nd Battalion with 20 prisoners. Later, with the 2nd Battalion the unit distinguished itself in the hard-fought battle of Brest. Under the leadership of Lieutenant Colonel Richard Sullivan the 5th Ranger Battalion took part in the Battle of the Bulge, Huertgen Forest and other tough battles throughout central Europe, winning two Distinguished Unit Citations and the French Croix de Guerre. The outfit was deactivated October 2 at Camp Miles Standish , Mass.