was it a part of any war?
Yes,  Cold War, Vietnam War, Gulf War
Boeing B-52 Stratofortress
Beginning with the successful contract bid in June 1946, the B-52 design evolved from a straight wing aircraft powered by six turboprop engines to the final prototype YB-52 with eight turbojet engines and swept wings. 
what is the 1994 fairchild air force base b-52 crash about? On Friday, 24 June 1994, a United States Air Force (USAF) Boeing B-52 Stratofortress crashed at Fairchild Air Force Base, Washington, United States who designed boeing b-52? Boeing engineers George S. Schairer, Art Carlsen and Vaughn Blumenthal when did it get upgraded? July 2013
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Boeing B-52 Stratofortress [SEP] Introduction
From 10 to 11 January 1962, a B-52H (60-0040) set a world distance record by flying unrefueled, surpassing the prior B-52 record set two years earlier, from Kadena Air Base, Okinawa Prefecture, Japan, to Torrejón Air Base, Spain, which covered 12,532.28 miles (10,895 nmi, 20,177 km). The flight passed over Seattle, Fort Worth and the Azores.