The purpose of alliances such as the Triple Alliance and the Triple Entente was to
a. Create a mutually advantageous free trade association
b. Provide mutual defense and support in case of attack
c. Cooperatively share resources in African colonies
d. Avoid war
The purpose of alliances such as the Triple Alliance and the Triple Entente was to "b. Provide mutual defense and support in case of attack," since these were "block alliances".
