The Korean and Vietnam wars drove further base expansion waves

Evidence

During the Korean War, the U.S. military built yet more overseas bases, increasing their number by 40 percent. By 1960, the United States had signed eight mutual defense pacts with forty-two nations, and executive security agreements with more than thirty others, helping it secure base access around the globe. Following some reductions after the Korean War, there was a further 20 percent increase in base sites during the war in Vietnam. — David Vine, Base Nation_ How U.S. Military Bases…, 97

Categorization

• corroborated: 2 independent passages support this claim — David Vine, Base Nation_ How U.S. Military Bases…, 97