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This is something I've just come across and find quite interesting. Seriously, what were these people thinking ?

Wiki:
British Prime Minister Winston Churchill was present at Field Marshal Montgomery′s headquarters near Venlo on the eve of Plunder (23 March). Subsequently, Churchill and Montgomery watched the Varsity air landings on 24 March.
The next day, 25 March, Churchill and Montgomery visited General Dwight D. Eisenhower′s headquarters. After lunch and a briefing, the party went to a sandbagged house overlooking the Rhine and a quiet, undefended stretch of the German-held riverbank. After Eisenhower′s departure, Churchill, Montgomery, and a party of U.S. commanders and armed guards commandeered a river launch and landed for 30 minutes in enemy territory, without challenge. They next visited the destroyed railway bridge at Wesel, departing when German artillery appeared to target them.
So, suppose the Germans get really lucky and a bunch of artillery shells kill Winston, Monty and the U.S. Generals. What sort of butterflies might come from this ?
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