The Canadian forces that landed on Juno Beach had a difficult battle. German concrete fortifications and a sea wall twice as high as at Omaha Beach made it very difficult to attack. Juno was the second most heavily defended beach on D-Day, next to Omaha. Canadians were off the beach within hours and advancing inland. They were the only units to reach their D-Day goals, although most units fell back a few kilometres to make stronger defensive positions.