During the campaign to recapture the Philippines, pilots of the 25th Liaison Squadron flew a dozen Stinson L-5 Sentinel aircraft in short 30-minute flights (December 10–25, 1944) delivering supplies (including a 300-bed hospital) to the 6,000 men of the 11th Airborne Division isolated in the mountains of Leyte. In another mission, an Army officer wounded in the chest in New Guinea was evacuated in a liaison aircraft as the pilot pumped a portable respirator with one hand while he flew the aircraft with the other. In the northwestern U.S., some liaison pilots flew forest patrols (Project Firefly) watching for fires ignited by incendiary bombs carried across the Pacific beneath unmanned Japanese high altitude balloons.