The Martini is a cocktail made with gin and vermouth, and garnished with an olive or a lemon twist. Over the years, the martini has become one of the best-known mixed alcoholic beverages. H. L. Mencken called the Martini “the only American invention as perfect as the sonnet” and E. B. White called it “the elixir of quietude”.
If you order a martini, this is what you should get. Gin! Otherwise order a Vodka Martini, which is really a faux martini. – Manhattman