Because the UK wasn't planning for peace Munich was attempt to buy enough time for the UK and France to properly rearm and thus enable them to properly stand up to Hitler. For heavens sake 1939 had conscription well before WWII broke out
What in your opinion is the worst lie ever told by a politician? My personal favorite is Chamberlin's Peace in our time....when in reality Munich was an attempt to buy enough time for the UK and France to rearm properly