Chomsky :
事实上，美国有一种超现实的品质。拒绝奥地利式的乌克兰中立。我们政策制定者非常清楚，在可预见的未来，乌克兰加入北约不是一个选择。当然，我们可以抛开关于主权神圣性的荒谬姿态。所以，为了一个他们一时不相信的原则，为了追求一个他们知道遥不可及的目标，美国冒着可能演变成令人震惊的灾难的风险。表面上似乎难以理解，但有似是而非的帝国计算。
Link: https://www.historyguy.com/wars_by_president.htm
Franklin D. Roosevelt (1933-1945)
Inherited:
U.S. Occupation of Haiti, which Roosevelt ended in 1933
Initiated:
U.S. involvement in World War Two
Harry S Truman (1945-1953)
Inherited:
World War Two. Truman made the decision to use two atomic bombs on Japan
Initiated/Engaged:
U.S. involvement in the Cold War against the Soviet Union and associated communist states and organizations
U.S. involvement in the Korean War
Cold War Crisis/Incidents:
Soviet Occupation of Northern Iran
Greek Civil War (U.S. supplied aid and military advisors to aid Greek government against communist rebels)
Berlin Crisis of 1948 and Berlin Airlift
Communist victory in Chinese Civil War. The U.S. supported the losing Nationalist Chinese side that then moved to the island of Formosa (now Taiwan), when they lost the war to the Communists.
Dwight Eisenhower (1953-1961)
Inherited:
Cold War
U.S. involvement in the Korean War
Initiated/Engaged:
Covert U.S. action in Guatemala and Iran
U.S. military intervention in Lebanon in 1958
Military Intervention in Vietnam (advisors sent in 1955. The U.S had 900 U.S. troops in Vietnam by the end of 1960)
Cold War Crisis/Incidents:
Taiwan Straits Crisis of 1954
Hungarian Revolution (Hungarians unsuccessfully rebelled against Soviets in 1956)
Fidel Castro's victory in Cuban Revolution and his alliance with the Soviets. U.S. begins covert operations against Cuba, including planning for invasion by Cuban exiles.
U2 Spy Plane Shootdownand Crisis (1960)
John F. Kennedy (1961-1963)
Inherited:
Cold War
Covert Operations against Castro's Cuba
U.S. involvement in the Vietnam War
Initiated/Engaged:
Increase of American involvement in Vietnam and Laos. By the time of Kennedy's death in 1963, nearly 16,000 U.S. troops were in Vietnam.
Cold War Crisis/Incidents:
Berlin Wall Crisis of 1961
Bay of Pigs Invasion of Cuba by Cuban Exiles with U.S. aid in 1961 (planning had begun under the Eisenhower Administration)
Cuban Missile Crisis of 1962-Nearly led to war with the Soviet Union
Lyndon B. Johnson (1963-1969)
Inherited:
Cold War
U.S. involvement in the Vietnam War. By the time Johson left office in January, 1969, over 500,000 U.S. troops were in Vietnam.
Initiated/Engaged:
U.S. Invasion/Intervention in the Dominican Republic in 1965
Cold War Crisis/Incidents:
Korean DMZ Conflict. Low-level combat along the Demilitarized Zone separating North and South Korea. This conflict lasted from 1966 to December of 1969. The U.S. suffered 43 dead and 111 wounded.
USS Pueblo Crisis of 1968 North Korea attacked and captured the U.S. Naval ship the Pueblo off the Korean coast.
Six-Day Arab-Israeli War of 1967. The U.S. supported Israel, while the Soviets supported Egypt, Syria, and Iraq
Richard M. Nixon (1969-1974)