Which eastern anti-communists are you referring to?

Maybe Syngman Rhee?

• The U.S. installed Syngman Rhee,a conservative Korean exile, as President of South Korea in 1948. Rhee became a dictator on an anti-communist crusade, arresting and torturing suspected communists, brutally putting down rebellions, killing 100,000 people and vowing to take over North Korea. Rhee precipitated the outbreak of the Korean War and for the allied decision to invade North Korea once South Korea had been recaptured. He was finally forced to resign by mass student protests in 1960.1

Maybe Chiang Kai-shek?

• In 1949 during the resumed Chinese Civil War, the US supported the corrupt Kuomintang dictatorship of Chiang Kaishek to fight against the Chinese Communists, who had won the support of the vast majority of peasant-farmers and helped defeat the Japanese invasion. The US strongly supported the Kuomintang forces. Over 50,000 US Marines were sent to guard strategic sites, and 100,000 US troops were sent to Shandong. The US equipped and trained over 500,000 KMT troops, and transported KMT forces to occupy newly liberated zones as well as to contain Communist-controlled areas.51 American aid included substantial amounts of both new and surplus military supplies; additionally, loans worth hundreds of millions of dollars were made to the KMT.59 Within less than two years after the Sino-Japanese War, the KMT had received $4.43 billion from the US—most of which was military aid.511

Or maybe Ngo Dinh Diem of South Vietnam?

• From 1955-1975, the US supported French colonialist interests in Vietnam, set up a puppet regime in Saigon to serve US interests, and later took part as a belligerent against North Vietnam in the Vietnam War. U.S. involvement escalated further following the 1964 Gulf of Tonkin incident, which was later found to be staged by Lyndon Johnson. The war exacted a huge human cost in terms of fatalities (see Vietnam War casualties). Estimates of the number of Vietnamese soldiers and civilians killed vary from 966,000 source to 3.8 million.source Some 240,000–300,000 Cambodians,source23 20,000–62,000 Laotians,4 and 58,220 U.S. service members also died in the conflict, with a further 1,626 missing in action. Unexploded bomb continue to kill civilians for years afterward. 1