China begins their view of BW based on experience with Japan 's Unit 731 , Soviet WWII " Operation Golden Triangle " , and an apparent belief that the US did use BW during the Korean War . Even though the Korean War claim is rejected by independent observers , it must be accepted , to do proper analytical intelligence , that this is ingrained into the minds of Chinese policymakers
Unit 731
Unit 731
CIA transnational activities in counterproliferation