Final answer:
The Kellogg-Briand Pact aimed to discourage warfare by declaring war an international crime, but was ineffective due to lack of enforcement mechanisms.
Step-by-step explanation:
The purpose of the Kellogg-Briand Pact was to renounce war as an instrument of national policy. This international agreement, initiated in 1928, was part of a broader effort to promote peace and prevent future conflicts following World War I. The pact was negotiated between U.S. Secretary of State Frank Kellogg and French Foreign Minister Aristide Briand, and ultimately more than sixty countries signed it, declaring war an international crime. Despite this notable aim, the pact failed to achieve its goals, as it lacked enforcement mechanisms and did not require signatories to take action in the event of violations, which led to it being ineffective in preventing the military aggressions that followed in the 1930s.