In WW2, the beaches near Blackdog had Landmines planted in response to the fear of a German invasion, there are several recorded fatalities with Landmines. 10 March 1941 at North Beaches of Blackdog, Sapper Leslie Alfred Whitney - Royal Engineers (age 23) when a "toadstool" he was arming detonated. 17th March 1941 at Millden Links, Corporal Charles Crowe - Gordon Highlanders (age 24) and on 18 March 1941 at Millden Links, Private Colin Innes - Gordon Highlanders (age 22) were all killed by landmines.
The minefields were cleared in 1944 by 11th Company Royal Engineers Bomb Disposal, during the clear up a Wasp (converted Bren gun carrier) used for flamethrowing to burn off vegetation was blown up when it hit a mine. One person lost a hand and several were injured.