 Communications regarding these matters between Churchill, Roosevelt, and Stalin took place by telegrams and via emissaries—but it was evident that direct negotiations were urgently needed.Stalin was reluctant to leave Moscow and was unwilling to risk journeys by air, while Roosevelt was physically disabled and found travel difficult.Churchill was an avid traveller and, as part of an ongoing series of wartime conferences, had already met with Roosevelt five times in North America and twice in Africa and had also held two prior meetings with Stalin in Moscow.