The term used to describe the willingness of britain and france to allow hitler to repeatedly break provisions of the treaty of versailles is

Appeasement.

Explanation:

Appeasement was a foreign policy during the 1930s by British and France that allowed Hitler to expand German territory without any restriction. This policy also meant to leave both nations like France and Britain alone. Hitler started to increase his territories by invading neighbouring nations.  Hitler also increases Germans military capacities which included fighter airships along with ships, submarines, tanks to show their strength and power.              

the answer is prolly b