Democratic Republic of the Congo
Who & why: Laurent-Désiré Kabila's rebel coalition topples Mobutu Sese Seko in May 1997, ending 32 years of dictatorship, and immediately restores the country's earlier name and a diagonal-stripe flag close to the one used briefly in the early 1960s. Kabila is assassinated in 2001 and succeeded by his son Joseph; two devastating regional wars (the First and Second Congo Wars, 1996–97 and 1998–2003) draw in half a dozen neighboring armies and cause enormous civilian loss. A 2006 constitution formally fixes the flag's proportions and shades, and the country has held contested but functioning multiparty elections since, including a first peaceful transfer of power in 2019.
What it represents: the sky-blue field stands for peace; the red diagonal stripe recalls the blood of the nation's martyrs; the yellow fimbriation bordering it stands for the country's wealth; and the yellow star represents a radiant, unified future.