New York State was a center of industry during World War II. New York aviation companies designed many of the greatest combat aircraft of the era, and bustling armies of women and men helped quickly churn them out by the thousands. More than one fourth of all US warplanes came from New York drawing boards during the war. These planes saw combat service everywhere, holding the line in the deserts of North Africa and flying from aircraft carriers plying the vast Pacific Ocean. Others operated over the frozen tundra of Alaska and Siberia. New York aircraft flew tons of fuel, ammunition, and supplies over the treacherous Himalayan Mountains into China, relentlessly hounded enemy submarines and ships, and battered Axis strongholds all the way to victory.