The Dutch prepared to open their Zuider Zee dikes if necessary. To give their waters time to rise, the Dutch mined all roads and bridges entering their country from Germany.

Scores, hundreds, thousands of French, British, Germans—seasoned survivors of World War I as well as fresh-faced fodder for World War II— suffered painful, personal wounds or death along the Perl-to-Lauterbourg front last week. So did hundreds of pigs which the French Infantry drove before them to locate and…