Answer: Containment was the major Cold War policy of the United States and its allies to prevent the spread of communism abroad. This policy was a response to a series of moves by the Soviet Union to enlarge communist influence in Eastern Europe, China, Korea, Africa, and Vietnam. Containment represented a middle-ground position between detente (the easing of strained political relations and rollback forcing a change in the major policies of a state, usually by replacing its ruling regime. It lets the opponent choose the place and time of any confrontation. During the Cold War, it meant intervening to prevent the spread of Communism to new countries but not attacking nations that were already Communist.
Answer: most likely the assassination of Archduke Franz Ferdinand from Austria
Explanation: The assassination of Archduke Franz Ferdinand made Austria understandably ANNOYED and they went to war with Serbia which most likely had killed the duke.
"Fealty" also referred to the duties incumbent upon a vassal that were owed to the lord, which consisted of service and aid. One part of the oath of fealty included swearing to always remain faithful to the lord. ... Fealty and homage were key elements of European feudalism.