File:Flags of the Union Jack.svg - Wikimedia Commons

File:Flag of the North American Union.svg - Wikimedia Commons

File:Flag of the Union of Upper Silesians (1920-1924).svg - Wikimedia Commons

File:Flags of the Union Jack.svg - Wikimedia Commons

The Spanish Revolution Betrayed, Spanish Revolution

British Civil Air Ensign - Wikiwand

File:450px variation in green of the Union Jack.svg - Wikimedia Commons

Governor of the Cayman Islands - Wikiwand

File:Russia Gay flag.svg - Wikimedia Commons, russia flag

The Tupamaros: Uruguay's Marxist Revolutionaries