Here's another selection of databases made available by Ancestry in the lead up to November 11.
UK, Military Campaign Medal and Award Rolls, 1793-1949
Lists of more than 2.3 million officers, enlisted personnel and other individuals entitled to medals and awards commemorating their service in campaigns and battles for the British Army between 1793 and 1949. It excludes WWI or WWII medal and award rolls.
UK, Naval Medal and Award Rolls, 1793-1972
Lists of more than 1.5 million officers, enlisted personnel and other individuals entitled to medals and awards commemorating their service with the Royal Navy and Royal Marines between 1793 and 1972, and including WWI or WWII service.
UK, Citations of the Distinguished Conduct Medal, 1914-1920
25,000 citations for recipients awarded the Distinguished Conduct Medal. Includes Canadians awarded this, the second highest military honor for non-commissioned officers and enlisted personnel. If you don't have Ancestry access try searching gazettes-online.