What are agreements made with other countries to help defend each other in case they are attacked. *
1. Militarism
2. Alliances
3. Imperialism
4. Nationalism
Other:

Alliances

Explanation:

Alliances is an agreement between two countries or more that is aimed to join their resources together in order to pursue a common benefit.

This benefit could include wide varieties of things including military's alliances, trade alliance, activism, etc.

Helping each others when they're attack is a form of military's alliances. Currently , Two main military's allies of United States are Britain and France.

the answer is either c or d i think its d

answer; society;