The 1923 Bulgarian coup d'état, also known as the 9 June coup d'état, was a coup d'état in Bulgaria implemented by armed forces under General Ivan Valkov's Military League on the evening of 9 June 1923. Hestitantly legitimized by a decree of Tsar Boris III of Bulgaria, the coup overthrew the elected government headed by Aleksandar Stamboliyski of the Bulgarian Agrarian National Union, and replaced it with one under Aleksandar Tsankov.
The leaders of the coup in the house of General Ivan Rusev (the image has been restored). From left to right: Dimo Kazasov, Kimon Georgiev, Nikola Rachev, Yanaki Mollov, Ivan Valkov, Aleksandar Tsankov, Khristo Kalfov, Ivan Rusev, Petar Todorov, Tsvetko Boboshevski.
The Tsardom of Bulgaria, also referred to as the Third Bulgarian Tsardom, sometimes translated in English as the "Kingdom of Bulgaria", or simply Bulgaria, was a constitutional monarchy in Southeastern Europe, which was established on 5 October 1908, when the Bulgarian state was raised from a principality to a tsardom.
Ferdinand I of Bulgaria at the proclamation of Bulgarian independence, 1908