The Tokyo Game Show or TGS (東京ゲームショウ, Tōkyō Gēmu Shō) is one of the world's leading videogame conventions, serving as a Japanese counterpart to the German Gamescom and the American E3. Trailers for Ace Combat have been released on the TGS, like the Ace Combat Zero: The Belkan War announcement trailer in 2005 and the second teaser of Ace Combat: Assault Horizon in 2010.