I don't know that it was so much of a "focus" but rather what we could do and could not do with what we had available. When I took the turn, there were a good number of transports to move stuff around and while the fleet was being challenged by the US (and the occasional Brit), there was enough of it to provide good gunfire support to whatever islands I decided to pick on. Scouting revealed that what I could see was not that heavily defended and I wanted to secure our communications through the Carribean and not give the US a good area to push the attack against us. In addition, some of the remaining locations were held by the Brits, so they needed to go just on principle. We had a force in Central America, but scouting showed the city they were next to was very heavily defended and even if I had the fleet available for nothing but shore bombardment, it would be awhile before we could take the city and in the mean time, the US would have been given the local initative to pour more troops into the area. We were at a good stopping point in South America as well in that what we had was very defensible for the moment while dealing with the US in the north. I also sent a lot of troops and some workers to the theater although they were not available for my use, people going after me got the benefit of the additional forces. I guess a long story short is I had limited forces at my disposal and decided to fight off/get aggressive to the north where the action was coming in from the US to help secure the area and get control of the seas in the area from the US. Since the end of my turns (and with the capture of Cuba) it sounds like the US has been somewhat annoying, but not really a big threat.