War of Independence or The Revolution, which has daughters, in US parlance. The other one was the War Between The States, which has many progeny but none of them legitimate. The Louisiana Purchase was when Napoleon sold Cajun to the USA, France got off lightly. Davy Crockett got them Tex-Mex to go with it, and California too, and the Tsar (Alexander I think) sold them Alaska in 1867 when everybody thought it was useless.