Watch Fmovies. The first American invasion force of the Second World War gathered off the coast of Guadalcanal. Over 19,000 young Marines prepared for a mission that many regarded as impossible against the seemingly invincible Japanese. Wars are not won with luck or firepower. Much like a great game of chess, wars are won with strategy. Uncover the strategy that guaranteed victory, or defeat, in some of these most decisive battles of modern history.