Answer :
Final answer:
Alliances in wars caused conflicts to rapidly spread and escalate through mutual defense obligations.
Explanation:
Alliances were a key factor in the rapid spread of conflict during wars. One example is how in World War I, the alliances between countries like Serbia and Russia pulled in other nations like Germany and France, escalating the scale of the war.
These alliances obligated military actions when any power in the alliance was attacked, leading to a chain reaction of involvement and expansion of the conflict.
The nationalistic rivalries and the strong alliance systems in place by 1914 made it so that even minor events could trigger a full-scale war due to the commitment to defend allies.
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