How each of the four long-term causes helped to increase the likelihood of war?

The four long-term causes of war—nationalism, militarism, Imperialism, and alliances—created a volatile environment. Nationalism fostered intense competition and resentment between nations, while militarism led to an arms race, making conflict seem inevitable. Imperialism intensified rivalries as nations vied for colonies and resources, heightening tensions. Lastly, the complex system of alliances meant that a conflict involving one country could quickly escalate into a larger war, as allies were compelled to support one another.