It seems to me that Rubber is the most important resource of the game, as no civ can build land units past rifleman and infantry without it. In far too many games (I play mostly Monarch on small maps) I am able to send a troop (4-6) of Infantry into the enemy (or enemies) territory, pillage the 2-4 rubber I do not "own", and sit on it until I have slaughtered all oppostion (or end of the game sometimes. Once the enemy civ runs out of Infantry and Tanks becuase they have no rubber, they start churning out riflemen and cavalry to attempt to cope with my Infantry and Tanks, and Tanks cut through those forces like a hot knife through butter. It seems like Rubber is too important and/or the AI is not good enough to 1) assemble even a small force to remove me from the rubber and then 2) send out workers to rebuild the connection. It seems far too easy to mop up oppsing civs with this stategy. In addition, if you do this inbetween Infantry and Tanks (or before the enemy has Tanks) they are done for as they do not have a very good way of removing your fortified Infantry without heavy losses. On a similar note, it seems like Tanks are the most unbalanced unit in the game. To go from a 6/3/3 unit to the 16/8/2 Tank as the next offensive unit in development seems steep. The ability to launch that offense twice against an enemy seems unbalancing. I believe the introduction of the Tank to your civs development is one of the most important stages in the game (hence my avatar). What is really too bad about the whole thing is that the AI seems oblivious to the power of Tanks and/or how to use them once they have them. Does anyone agree/disagree?