This collection contains research files generated by UCSB Professor of History Tsuyoshi Hasegawa in the course of writing books on Russian/Soviet history and the Cold War, as well as the history of the Pacific War during World War II and Soviet-Japanese relations.

"Tsuyoshi Hasegawa (長谷川 毅 Hasegawa Tsuyoshi, born 23 February 1941, Tokyo, Japan) is an American historian specializing in modern Russian and Soviet history and the relations between Russia, Japan, and the United States. He taught at the University of California, Santa Barbara, where he was director of the Cold War Studies program, until his retirement in 2016.

30 Linear Feet (30 cartons)

Copyright has not been assigned to the Department of Special Research Collections, UCSB. All requests for permission to publish or quote from manuscripts must be submitted in writing to the Head of Special Research Collections. Permission for publication is given on behalf of the Department of Special Research Collections as the owner of the physical items and is not intended to include or imply permission of the copyright holder, which also must be obtained.

Materials in Japanese and Russian are unprocessed. Advance notice is required for access.