What kinds of resistance did American troops meet at Omaha Beach on D-Day?

At Omaha Beach on D-Day, American troops faced intense German resistance, including heavy machine gun fire, artillery bombardments, and fortified positions. The beach was heavily defended with obstacles like barbed wire and landmines, making it difficult for troops to advance. Many soldiers encountered a well-coordinated defense from German forces, which resulted in significant casualties during the initial assault. Despite this fierce opposition, American forces managed to secure the beachhead after overcoming these formidable challenges.