Invasion: America, subtitled "Death Throes of the Superpower", is a near-future board wargame published by SPI in 1976 that simulates a hypothetical coordinated attack on North America by various factions. Description In this alternate history, it is the year 2000, and the United States has annexed Mexico and the states of Central America. Invasion: America is a 2–4 player corps-level wargame in which one side controls a coalition of three factions simultaneously invading North America from the Pacific, South America and Cuba, and the other side defends North America with American and Canadian forces. Components The game box contains: two-piece 35" x 46" paper hex grid map of North America scaled at 130 km (80 mi) per hex 400 die-cut counters 16-page rule book plastic counter tray two six-sided dice Scenarios There are six scenarios presented with the game that each last 8 turns. There is also a 60-turn campaign game. Gameplay The game uses the standard "I go, You go" system: one player moves all pieces desired, then the other player moves. If, after a player's movement phase, any units are adjacent to an enemy piece, combat is resolved by calculating the ratio of attacker to defender strength and rolling a die. The result is losses or a forced retreat for one or both sides. Untried units Invasion: America was the first wargame to use the concept of "untried units" to extend a fog of war over the map. Each militia unit has its true value printed on one side and a question mark printed on the other side. The counter is placed facedown with the question mark showing. The players do not know the strength of a unit until it is engaged and subsequently flipped over. If militia units show zero combat strength they will retreat, as will ALL other units in their stack. Victory conditions In each of the scenarios, control of important cities and resources results in victory points – the side with the most points at the end of the 8th turn wins. In the campaign game, the invaders must control all cities and resources by the end of the 60th turn to win; otherwise the North American side wins. Publication history Invasion: America was designed by Jim Dunnigan, with cover art and graphics design by Redmond A. Simonsen. When it was released by SPI in early 1976, it immediately rose to No. 1 on