did the ship participate in any wars?
World War I
HMS Collingwood (1908)
 In August 1914, following the outbreak of World War I, the Home Fleet was reorganised as the Grand Fleet, and placed under the command of Admiral John Jellicoe. 
what does the term hms collingwood refer to? A dreadnought battleship by whom was it designed? UNANSWERABLE which country did it belong to? United Kingdom
wiki:7479935
HMS Collingwood (1908) [SEP] World War I
Between 17 and 20 July, "Collingwood" took part in a test mobilisation and fleet review as part of the British response to the July Crisis. Arriving in Portland on 27 July, she was ordered to proceed with the rest of the Home Fleet to Scapa Flow two days later to safeguard the fleet from a possible German surprise attack. In August 1914, following the outbreak of World War I, the Home Fleet was reorganised as the Grand Fleet, and placed under the command of Admiral John Jellicoe. Most of it was briefly based (22 October to 3 November) at Lough Swilly, Ireland, while the defences at Scapa were strengthened.