If Poker were the game of Risk...

[Iceman]

The way to win at risk is to hoard armies and expand very slowly. You should usually conquer only one territory per turn and that's just for the Risk card. Your short-term goal is to have a safe base (either Australia or South America) where you only need to put lots of armies on 1-2 spaces to hold a lot of spaces. Then you expand slowly from there - from South America into North America, from Australia into Asia, or from Africa into Europe. With any of those pairs, you can hold the entire thing with 3-4 spaces, and then you're in good shape to go for the win. The only exception is when one other player is expanding very quickly, in which case your strategy of slow expansion would lead to you being outgunned by his sheer number of armies, and you need to do an all-out attack to weaken him.