Courses in defence training were mandatory for boys and girls in most Canadian high schools during the Second World War, although certain elements of the course for girls (such as "Healthful Living, Rhythmics, Dances, etc") were not covered in this textbook.
Like other sets in the Fighting Forces series (and the World in Arms series on which it was based), this one featured naval vessels from Allied as well as enemy fleets: US battleship "Mississippi"; French battleship "Dunkerque"; British torpedo boat "Hornet"; Japanese destroyer "Fubuki"; Italian cruiser "Zara"; German submarine; US heavy cruiser "Indianapolis"; Spanish cruiser "Canarias"; motor torpedo boat; Japanese aircraft carrier "Akagi"; British battleship "Rodney"; Italian M.A.S. boat.
Probably distributed as a product premium during the Second World War, these photographs show military aircraft that were in Canadian and British service: Bell Airacobra; Blackburn Skua; Boulton & Paul Defiant; Consolidated Liberator; Curtiss Kittyhawk; Douglas B19; Douglas DB7 Havoc; Hudson Bomber; Lockheed YP38; Spitfire; and Vultee Vanguard.
A separate section of the Fighting Forces gum card series (and the American World in Arms series on which it was based) was reserved for a hodge-podge of different weapons: Flame Throwers; British Death-dealing Balloon Barrage; Landing Russian "Air Infantry"; The New Garand Automatic Rifle; British Portable Steel Air Raid Shelter; Gas Raid Rescue Squad; Stream of Torpedoes; Devastating Martin-Barlow Aerial Bomb.
Distributed by the Canada Starch Company as a product premium during the Second World War, this set depicted Allied naval vessels: aircraft carrier HMS Ark Royal, a Tribal-class destroyer, battleship HMS King George V, battle cruiser HMS Repulse, a Shark-class submarine, battleship HMS Warspite, a motor torpedo boat, and battle cruiser HMS Hood.
These gum cards probably went into production very early in the Second World War - many of the airplanes featured had been removed service as obsolete by 1940, while others would eventually go through many variants: Republic Guardsman; Vickers Wellesley; Armstrong-Whitworth Whitley; Northrop 8A; Vought V-143; Supermarine Seagull V; Bell VFM-1; Curtiss Hawk III; Short Singapore III; Caudron C-670; Supermarine Stranraer; Lockheed Electra 10E; Sikorsky S-43; Boeing Stratoliner; Curtiss Y1A-18; Hanrive 510; Fairey FC; Grumann Midwing; Douglas TBD-1; North American Harvard; Northrop N-3; Saunder