504th Bombardment Group
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The 504th Bombardment Group was a World War II United States Army Air Forces combat organization.
504th Bombardment Group B-29 Superfortress formation over Mount Fuji in 1945
Image: 504bg
504th Bombardment Group bomb loaders 1945
421st Air Refueling Squadron
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The 421st Air Refueling Squadron is an inactive United States Air Force unit. It was last assigned to the 41st Air Division at Yokota Air Base, Japan, where it was inactivated on 18 February 1965.
421st Air Refueling Squadron Experimental YKB-29T Superfortress at Yokota AB in 1954
421st Air Refueling Squadron KB-50J Superfortress