["The Conquering Hero" is an] utterly charming, fast-moving and unpretentious musical—happily in the old tradition, and offering the rarity of a good, workable little book….

Larry Gelbart has done a creditable job of adapting the story from a Preston Sturges movie. I believe it should persevere….

"The Conquering Hero" is not a big one or a great one, but it gets a modest laurel wreath from this department.

John McClain, "Poston Stars in Hit Musical," in New York Journal-American (copyright 1961, Hearst Consolidated Publications, Inc.), January 17, 1961 (and reprinted in New York Theatre Critics' Reviews, Vol. XXII, No. 2, January 23, 1961, p. 390).