appeasement -
The state of being appeased; the policy of giving in to demands in order to preserve the peace.
Wikipedia
Appeasement is commonly understood to refer to a diplomatic policy aimed at avoiding war by making concessions to another power. It has been described as "... the policy of settling international quarrels by admitting and satisfying grievances through rational negotiation and compromise, thereby avoiding the resort to an armed conflict which would be expensive, bloody, and possibly dangerous.
