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In page April 1945:

"
  • The Fifth United States Army opened a major offensive into the Po Valley in Italy.[1]
  • Admiral Karl Dönitz grouped six U-boats into Wolfpack Seewolf and ordered them to the Atlantic to tie down Allied forces in the region. The Allies suspected that the U-boats were equipped to attack America's eastern seaboard with V-1 or V-2 rockets and launched Operation Teardrop with the objective of sinking them.[2]
  • German submarine U-235 was sunk in error by the Kriegsmarine torpedo boat T17.[1]