Henry John Patch, dubbed in his later years "the Last Fighting Tommy", was an English supercentenarian, briefly the oldest man in Europe, and the last surviving trench combat soldier of the First World War from any country. Patch was not the longest-surviving soldier of the First World War, but he was the fifth-longest-surviving veteran of any sort from the First World War, behind British veterans Claude Choules and Florence Green, Frank Buckles of the United States and John Babcock of Canada. At the time of his death, aged 111 years and 38 days, Patch was the third-oldest man in the world, behind Walter Breuning and Jiroemon Kimura.

Claude Stanley Choules was an English-born military serviceman from Pershore, Worcestershire, who at the time of his death was the oldest combat veteran of the First World War from England, having served with the Royal Navy from 1915 until 1926. After having emigrated to Australia he served with the Royal Australian Navy, from 1926 until 1956, as a Chief Petty Officer and was a naturalised Australian citizen. He was the last surviving military witness to the scuttling of the German fleet in Scapa Flow in 1919 and the last surviving veteran to have served in both world wars. At the time of his death, he was the third-oldest verified military veteran in the world and the oldest known living man in Australia. He was the seventh-oldest living man in the world. Choules became the oldest man born in the United Kingdom following the death of Stanley Lucas on 21 June 2010. Choules died at the age of 110 years and 63 days. He had been the oldest British-born man; following his death, that honour went to Reverend Reginald Dean. In December 2011, the landing ship HMAS Choules was named after him, only the second Royal Australian Navy vessel named after a sailor.