After the third American Major Success they win. They are going to the West Indies. Six turns after the first American Major Success brings 12 strength points of permenant French. Two turns or the first spring turn, whichever is last,after the first American Major Success brings 6 strength points of French seasonal forces. The seasonal forces arrive in spring and leave in fall.
All French losses are permenant.
For the British to win they must control 51 Victory Points at the end of any Game-Turn. Anything else is an American win. There are Variable Force Options. For instance is that Option F is incompatible with G and H. A is incompatible with B, C and D. Area movement games are not for everybody but the movement areas make sense with the river basins. Rivers were very important back then.