I recommend it mrfish. Hortlund's the expert if you have any problems.
My earlier plans of expansion came to nothing. Very soon after I took Novgorod and the province with access to the sea, one of the weirdest alliances possible declared war on me - England, the Teutonic Knights and Burgundy! Everything was quiet for about six months after the declaration of war and then suddenly a large army from England and Burgundy landed at my port. Since England was a super-power in those days, her forces kicked mine back to Moscow and I lost everything gained in the previous years. This also left an English colony right on my doorstep. Seeing my weakened state, the other Orthodox Christianity states around me (whom I was not popular with for annexing Novgorad) sent huge forces into the Moscow Province and that East of it. Within a year I'd lost everything.
Such is life in feudal Europe.

So I started again, but decided to be more of a diplomat. By building a stronger economy, and giving gifts to neighbouring states, I soon had 3 other nations as Vassals (one of which was a breakaway from the Mongol Golden Hordes). I also got well in with Novgorad and Lithuania - I was Mr. Nice Guy - and I was about to liberate the Orthodox Christian world from the unwashed Tartars. I left Psycho (I'm sure that's the right spelling

) as an enemy, since Novgorad had just had a huge 4 year long war with them, however. So I form an alliance with my 3 vassals and get ready to declare war on the Mongols, when low and behold Psycho declares war on me! Bloody stupid move, because I call on my recently formed Alliance to join me in crushing them. Within 2 years Pyscho is an annexed land and a distant memory as an independent state.
Now I'm going to hit the Tartars and start to build a greater Russia.

Fortunately, the Crimea and Ukraine have just rebelled against them and rebels are torching Mongol citadels all over the shop. Divide and conquer. Crimea and Ukraine have started a war of their own barely nine months after gaining independence, so they won't be interfering in my expansionist plans.