Possible Clues:

• Fighting forces stopping early, thrust endlessly suppressed - harbinger of peace?
• A vapour getting into the food in Farewell to Arms
• Care about being a befogged one at the end of the war?
• Spray into a crop when shooting stops
• Smart ones gathered at church for the Peace
• Peace, it's arranged with Crimea in turmoil
• It's a crime breaking a truce
• Truce possible if a fighting force is on the ball
• We turned up escaping out of armies twice for let-up from war
• Armenian cities are demolished, despite truce