General Montgomery in surrender agreement meeting, Germany, 1945

The video details a significant historical event where Montgomery receives a Nazi delegation at his headquarters. The German delegation signs a surrender document, marking the end of German armies in North Germany, Holland, Denmark, and Norway. Montgomery signs for the successful completion of a military campaign that began at the gates of Egypt.

Who is Admiral Hans George and what did he surrender?

What does Montgomery's signature represent in the context of the fighting crusade?