The BBC reported that MI-19 staff were sent to the Channel Islands in 1945 to look for evidence of collaboration during the German occupation. The intent may have been to silence speculation. The Channel Islands were demilitarised by Britain when France fell, and were occupied by substantial German forces. The islands had no strategic value, unlike Malta, and any tactical value would have been outweighed by the effort to maintain forces there. The Channel Islands did contribute to the war effort, by tying up large numbers of German troops who were not available for more aggressive military tasks. There was also a very substantial investment in fortifications, all of which were in the end pointless.