The American publisher Squadron / Signal Publications publishes various renowned book series. Squadron / Signal Publications is the editorial team of MMD-Squadron, one of the largest military model dealers in the world. Squadron Mail Order was founded by model builders in the late 1960s and is the oldest and most reliable mail order company in the United States, specializing in military models, books, and model building supplies. The best-known publications include the magazine series: In Action, Walk Around, Detail In Action, On Deck, At The Gate, Combat Chronicles, Squadron At Sea, and Historical Reference.
