On 6 June 1944 after waves of bombers dropped their payloads on the German defences, seventeen warships opened fire simultaneously on the beach defences.
The first assault troops landed around 6:30 a.m. The landing ships ran aground fifty meters from the shoreline. The U.S. Army's 116th Infantry Regiment of the 29th Infantry Division, along with the 5th Ranger Battalion, A, B, and C Companies of the 2nd Ranger Battalion landed on Dog Green, Dog White, Dog Red, and Easy Green sectors of Omaha Beach, heavily equiped, they waded in the water to reach the shoreline.
The Germans defenders were mainly intact due to inaccurate aerial bombings. The German defences crushed the first companies entangled in the obstacles. At 8:30 a. m. the beaches were overloaded with vehicles, the order was given to stop any troops landing. Around 10:30a.m. the men of the 116th Infantry Regiment and the 5th Rangers rushed into the attack and broke through. In the evening Vierville-sur-Mer was taken, a German counter-attack was pushed back.