Fortress America- The Importance of the Blue Invader
More than 20 years playing Milton Bradley's Fortress America has led me to the conclusion that the Southern Invader (colored blue) is pivotal to an Invader victory. While all three invaders are important and necessary for an Invader victory, I believe that blue is the fulcrum around which the invader's chances of success necessarily rotate.
Let us first briefly examine the military potential of all three Invaders.
The western invader's success is fairly easy to predict. The US has few reinforcements in the area, and the few that might turn up should be easily dealt with by the invader. We can count on yellow to capture and hold 6 or 7 cites before they move too far inland and overextend their supply lines. Yellow should be given responsibility for the westernmost cities in the blue invasion area. If blue ignores Denver, yellow could take it late in the game.
The eastern invader is less easy to predict, but some general trends can be seen. With the high number of US troops in the area, red often has trouble capturing more than 4 or 5 cities. Holding those cities is sometimes difficult as well, since the US has many cities in the area to receive reinforcements. I routinely see red with only 3 cities after 4 turns, due to all those US troops.
This brings us to the southern invader. Because yellow is limited in the number of cities they can comfortably reach, and red's effectiveness is limited by the amount of US troops, blue is now pivotal for the invader's success. The following ideas will give the invaders the best chance of a win.
Blue should ignore all cities in the west, leaving them to yellow to conquer. This allows yellow to capture as many as 8 cities, taking the pressure off of red in the east. Instead of splitting forces between east and west, blue should focus solely toward the midwest and southeast of the map, keeping troops close together for secure supply lines. Moving toward the St. Louis area forces the US to keep troops in the area, lowering the defense that red must face. Also, blue can put indirect pressure on Atlanta by threatening Memphis. Blue troops will be crowded for the first 2 or 3 turns, but clever use of the movement rules should mitigate most of this problem. Blue should also be aggressive. Moving too slowly allows the USA to destroy more of red's troops, lowering the chances of an invader win.
While certainly not a guarantee of victory, these ideas should give the invaders an excellent chance to overcome the US.