1918 he entered into Saaremaa Defence Forces (). He participated on Estonian War of Independence, fighting for Estonia. From 1920 until 1928, he was the commander of Cavalry Officers' School (). In 1928 he retired. In 1939, he moved to Germany and died in Karlsruhe in 1964. On 12 September 2014, the ashes of von Buxhoevden and his wife Kira ("née" Scheidemann) were buried in the Defence Forces Cemetery of Tallinn.