Which list includes events that all occurred during Reconstruction?

During the cold war, the united states was involved in certain regional conflicts due to fears later called the domino theory, which stated which concept?

Two gymnastics teams are intense rivals. the first team has started recruiting new gymnasts from different cities and even foreign countires in an effort to build a stronger team. after learning this, the secondteam begins its own recruitment campaign to find better gymnasts. over a period of months, each team recruits dozens of players, each time trying to find a better recruit than its rivals most recent addition. which idea from the cold war is most similar to this scenario

What was the final spark that ignited the “european powder keg” and started world war 1