With the fall of the two passes the main line of resistance of the Greek Epirus army was broken, and the campaign became a battle to prevent the escape of the enemy. On 20 April, following a pitched battle in the Metsovon Pass in the Pindus Mountains, the commander of the Greek Epirus army surrendered the entire force to Dietrich. British Commonwealth troops were now the only Allied forces remaining in Greece, and they were falling back across the Corinth Canal to the Peloponnesos. By 26 April the LSSAH had reached the Gulf of Patras, and in an effort to cut off the retreating British Commonwealth forces, Dietrich ordered that his regiment cross the Gulf and secure the town of Patras in the Peloponnesos. Since no transport vessels were available, the LSSAH commandeered fishing boats and successfully completed the crossing, but were forced to leave much of their heavy equipment behind. By 30 April the last British Commonwealth troops had either been captured or escaped. The LSSAH occupied a position of honor in the victory parade through Athens. After Operation Marita, the LSSAH was ordered north to join the forces of Army Group South massing for the launch of Operation Barbarossa.