 Reinforcement aircraft arrived, giving the Germans 362 operational aircraft in the Aegean by 1 October.The British forces on Kos numbered about 1,500 men, 680 of whom were from the 1st Durham Light Infantry, the rest being mainly RAF personnel and Italians of the 10th Regiment, 50th Infantry Division "Regina".On 3 October, the Germans effected amphibious and airborne landings known as "Unternehmen Eisbär" (Operation Polar Bear) and reached the outskirts of the capital later that day.