| Yugoslavia | /banner-years-next/flag-01.png|Historical flag image 1|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1946-1992: Serbia and Montenegro kept the blue-white-red stripes when they formed a smaller Yugoslavia in 1992, but removed the communist star. |
| Zaire | /banner-years-next/flag-02.png|Historical flag image 2|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1971-1997: The torch-bearing arm came from the emblem of dictator Mobutu Sese Seko's ruling party. After his overthrow, the country dropped both the flag and the Zaire name, becoming the Democratic Republic of the Congo again. |
| Imperial Iran | /banner-years-next/flag-03.png|Historical flag image 3|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)This 1970s design carries the Lion and Sun, a symbol used on Persian flags for centuries. It briefly outlasted the 1979 revolution before the Islamic Republic replaced it in 1980. |
| Empire of Brazil | /banner-years-next/flag-04.png|Historical flag image 4|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1870-1889: Green represented Emperor Pedro I's family and yellow the family of his wife, Empress Leopoldina. The republic kept both colors when it replaced the imperial arms with a starry globe. |
| Siam | /banner-years-next/flag-05.png|Historical flag image 5|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1855-1916: Merchant ships from Siam, now Thailand, had flown plain red. As foreign trade grew, they were allowed to use the royal white elephant so their flag could be recognized abroad. |
| Republic of Formosa | /banner-years-next/flag-06.png|Historical flag image 6|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1895: This republic in Taiwan lasted only five months, formed to resist the island's handover from China to Japan. The yellow tiger survives in a museum replica of the lost original flag. [Artwork ↗](https://commons.wikimedia.org/wiki/File:Flag_of_the_Republic_of_Formosa_%28Detailed%29.svg) |
| Kingdom of Portugal | /banner-years-next/flag-07.png|Historical flag image 7|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1830-1910: The republic chose green and red, rejecting blue for its association with the Virgin Mary. Supporters of blue and white demanded a public vote, but the government refused. |
| Spanish Republic | /banner-years-next/flag-08.png|Historical flag image 8|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1931-1939: Purple was added to represent Castile, based on a mistaken belief about the color of its historic banner. Castile's royal banner was red. The republic kept purple until its defeat in 1939. Its Nationalist opponents had restored red-yellow-red in 1936, during the Civil War. [Artwork ↗](https://commons.wikimedia.org/wiki/File:Flag_of_Spain_%281931%E2%80%931939%29.svg) |
| Biafra | /banner-years-next/flag-09.png|Historical flag image 9|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1967-1970: Biafra was a breakaway state in southeastern Nigeria. Its attempt to become independent led to a civil war; after its defeat, the territory became part of Nigeria again. [Artwork ↗](https://commons.wikimedia.org/wiki/File:Flag_of_Biafra.svg) |
| South Vietnam | /banner-years-next/flag-10.png|Historical flag image 10|display:block;width:clamp(148px,22vw,190px);aspect-ratio:3/2;object-fit:contain;max-width:calc(50vw - 38px);margin:0 auto;padding:6px;box-sizing:border-box;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,0.12)1948-1975: Many Vietnamese refugees and their descendants still fly this flag as a symbol of their heritage. Its use remains controversial, and some Vietnamese people find it offensive. |