• Defence of the Realm




  • desertion




  • dogfight




  • duckboard




  • Dreadnought




  • Dual Monarchy




  • empire




  • gunboat diplomacy




  • British wartime legislation, 1914




  • Abandoning military duties in wartime




  • Aerial gunfight between planes or pilots




  • Platform on the bottom of a trench




  • Large class of British battleships




  • Common name for Austro-Hungarian Empire




  • Group of colonies controlled by a single nation




  • Intimidation or pressure on a smaller nation