War

War is a simple card game for two players, played with a standard deck split evenly between them face down, in which each player turns over their top card simultaneously and the higher card wins both, with a tie triggering a special war round of additional face-down and face-up cards to break it, continuing until one player holds every card. The game requires no decision-making by either player once dealt, since the outcome of every round is fixed by the cards drawn, and while its exact origin is not well documented, it has long been one of the most commonly taught first card games for young children because of its purely luck-based rules.