Foggia in Southern Italy, and Halifaxes, flown by 148 and 178 Squadrons of the RAF. The drops continued until September 21, delivering a total of 104 tons of supplies. The Soviet Union did not give permission to the Allies for use of its airports for those supply operations and thus the planes were forced to use bases in the United Kingdom and Italy which reduced their carrying weight and number of sorties. The Allies specific request for the use of landing strips made on 20 August was denied by Stalin on 22 August. He referred to the resistance as "a handful of criminals". United States Army Air Forces planes did not join the operation. On August 6, the Polish Ambassador called on the Lt. General McNarney to present an urgent request from the president of Poland for supplies to be furnished to the Polish Underground Army fighting the Germans in Warsaw. The Polish request asked that either General Eisenhower be authorized to send in supplies by air or that German munitions captured from the enemy by Soviet forces be sent to Warsaw from the United States bases in the Soviet Union. The Ambassador's memorandum also stated that arms and ammunition which Churchill had promised to parachute to Warsaw had not been sent because of technical difficulties. A response letter from the Joint Chiefs of Staff on August 7 stated that it "believed the Polish Ambassador should be informed that his appeal has been given most sympathetic consideration by the United States military authorities and that the matter has been referred to the Combined Chiefs of Staff for such action as is possible under the circumstances." In the annexes to the letter from the Joint Chiefs of Staff, it stated that in accordance with the agreed policy of the Combined Chiefs of Staff that supplies and equipment for the Polish Underground Forces is a British responsibility, and that the Polish request should be referred to the British Chiefs of Staff for such action as they may deem necessary and desirable. After Stalin's objections to support for the uprising, Churchill telegrammed Roosevelt on August 25 and proposed sending planes in defiance of Stalin and to 'see what happens'. Roosevelt replied on August 26: 'I do not consider it advantageous to the long-range general war prospect for me to join you in the proposed message to Uncle Joe'. Although German air defence over