1) Armistice follower 2) Halcyon period 3) Irenic period 4) Period 5) Period between wars 6) Period of time 7) Period without war 8) Postwar period 9) Time period 
In politics, peacetime is defined as any period of time where there are no violent conflicts occurring. For example, the time after World War II is considered peacetime in Western Europe and the United States.{cn|date=May 2014} ...
[n] - a period of time during which there is no war
noun a period of time during which there is no war