Answer:
He began by fortifying the Atlantic Wall in Normandy with more machine gun bunkers, millions of beachfront landmines, and by flooding inland marshes to trap Allied paratroopers. Rommel's strategic preparations would ultimately help the Nazis inflict terrible Allied casualties on D-Day.
Well countries typically allied with their neighbors because they usually had close relations like for instance Britain France and Belgium where all huddled together in west Europe while Germany was close to with Austria Hungary and both had good relations with the ottoman empire. because all of these countries were close together sometimes things got heated and with all of these alliances it was easy for all of these countries to fight each other.
