You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
What if the German military had struck the surrounded forces at Dunkirk? I'm bad at making timelines and apologize. I see something along the lines of the still fall of France and the UK is open to negotiations. While there is still the threat of the RAF the UK did fear a loss at Dunkirk and opened fire on the French troops attempting to join the retreat.