Militarism is the belief in maintaining a strong military and being prepared to use it aggressively to defend or promote national interests. It often involves prioritizing military spending and influence over other aspects of society, such as education or healthcare. Countries with militaristic policies may engage in arms races or expand their military presence. Historically, militarism has played a significant role in shaping international relations and conflicts. For example, during the early 20th century, the rise of militarism in nations like Germany and Japan contributed to the tensions that led to World War I and World War II.