Which of the following explains why Hitler had reason to be angry about events at Dunkirk?

Hitler's anger regarding the events at Dunkirk can be attributed to several factors:

1. Unexpected Resistance: The German forces had anticipated a swift victory over the Allied troops. The successful evacuation of British and Allied forces during Operation Dynamo was unexpected and frustrating for Hitler, as it allowed a substantial number of enemy soldiers to escape.

2. Strategic Setback: Dunkirk was seen as a strategic failure. Despite having the opportunity to potentially defeat a significant portion of the British Expeditionary Force, the evacuation undermined German military goals, allowing Britain to continue the fight against Nazi Germany.

3. Propaganda Impact: The successful evacuation served as a powerful propaganda tool for the Allies, fostering resilience among British citizens and military forces. Hitler likely resented this, as it contradicted the image of a dominant and unstoppable German military.

4. Operational Delays: Hitler's decision to halt the advance of his armored divisions, which allowed the Allies time to organize the evacuation, contributed to his frustration. This pause is often seen as a pivotal error in military strategy.

These factors combined to create a sense of anger and frustration for Hitler regarding the outcomes at Dunkirk.