Powarvasion

From the box:

"In POWARVASION(tm), two warring players battle to capture the other's government or three major cities. Players alternate moving one of their armed forces pieces until the war is over. These fighting forces move and capture in any direction up to their maximum range. Strategy and skill are the keys to victory. Players set hidden defensive traps, carry out hit and run raids and multiple captures, set up formidable geographical barriers, and launch nuclear attacks. POWARVASION(tm) is easy to learn, fun to play, and a superior war game challenge!"

The board (with a sample setup, less the hidden traps and presumably cities) is shown on the back of the box. 9x9 square grid, Country Capital (white house), ICBM and Bomber (counters?) look like the King & Queen in chess, flanked by two sets of helicopter, artillery and jet pieces in the knight/bishop/rook configs. 3 tanks and 6 infantry round out the pawn row (tanks at ends and center). From the board, it looks as if the next two rows you can choose where to set your 3 mountains; single river, lake and forest pieces, as well as two minefields and a missile site, along with between 6-9 "hidden" pieces (one side has 6, the other 9).

The side of the box has a picture of Col. James Jacobson, USAF ret., with a recommendation: "Powarvasion ...is an easy game to play, a thinking man's game of unmatched realism!"