The outbreak of hostilities, such as in major conflicts like World War I and World War II, involved multiple nations and a complex interplay of political, economic, military, and historical factors. Each nation can be partly responsible for the outbreak of hostilities in the following ways:
Alliances and Entanglements: Many nations formed complex alliances and agreements, which often obligated them to support their allies in the event of conflict. This system of alliances meant that a conflict between two nations could quickly escalate into a larger, more widespread war.
Nationalism: Strong nationalist sentiments and aspirations for territorial expansion or self-determination contributed to tensions and hostilities. Nations pursued aggressive policies to assert their dominance or protect their interests.
Imperialism: Competition for colonies and resources created friction among major powers, as nations sought to expand their empires and secure economic interests.
Military Buildup: Many nations engaged in an arms race, increasing their military capabilities and stockpiles.