Why did France and Germany have the biggest armies?

France and Germany had the biggest armies primarily due to their geopolitical ambitions and historical rivalries, particularly leading up to and during World War I and World War II. Both nations invested heavily in military expansion to assert their dominance in Europe, driven by nationalistic fervor and the need for security against perceived threats. Additionally, conscription policies allowed them to maintain large standing armies, reflecting their prioritization of military strength in their national strategies.