Miltarism: The desire to have a strong military that can use aggressiveness to win a war and promote their nations desire. They used their aggressiveness to protect their people and made sure they weren't pushed back
Allilance : This was when two or more countries formed a union that they both benefited from. They would form alliances with the countries that was close to them. Then they would be able to get countries that was far away for extra support.
Imperialism : It's when a country want to own a large scale of land, resources and make a whole lot of money. This would of caused a whole lot of problems because if everybody wants land and money their going to fight for the land that they want. They want it so they need to get it even if they have to go to war for it.
Nationalism: It's when you are loyal to your country and you place them above everything else. The people of these countries were so loyal that they fought in a war that they didn't care about. They were fighting because their country told them to not because they wanted to.