Slow Growth

I would cash in the cards. I will put 4 in Scandinavia and 6 in Ukraine (consider them as insurance!).

I will then make a nonaggression pact with Blue for Greenland, with the condition being that I will take Iceland from him. It is very unlikely that he will reject, as his position is utterly terrible. So, he will accept my offer.

Then I shall wait. I would cash my Europe bonus and slowly grow.  Yellow needs continents. So he may like to go for Africa since it is small and easily reachable. A few turns later, Yellow will assault the Middle East (probably winning) and moves his troops to that conflict area. I will then slowly try to grow in Asia getting one country after the other. I will make sure that Yellow doesn't get too upset, so he can carry on his assault on Green and leave me alone. In fact I will passively encourage him to do so (I can't talk about it actively, because I have a treaty with Green and I don't want to upset him either).

Meanwhile Blue is in war with Green. Green will eventually collapse as a result. At this point the situation is as follows:

• Yellow gets Africa and may go for South America as well, either for the continent, or for Green's cards.

• Blue owns North America, and probably likes to get South America as the Yellow troops are probably thin there.

• Green is gone.

Both Blue and Yellow are probably exhausted. This is the chance I was waiting for! I shall attack Blue from Kamchatka and Iceland and try to take Blue out in one go. I get his cards and I will end up in a much better position than Yellow.