WW I poster USA World War I, American propaganda poster showing an eagle leading a fleet of ships; an engulfing wave is composed of cavalry, infantry, and artillery.Original Title: The tidal wave - July 4, 1918 - 95 ships were launched by United States Shipping Board Emergency Fleet Corporation. Artist: Cozz (?) Lithograph poster, color; 77 x 52 cm. Publications Section, Emergency Fleet Corporation. Philadelphia 1918.