Had the unfortunate idea last night to attack Washington instead of Nebuchednezzar. I started off with Com. Bowmen whom I upgraded to Longbowmen. But the Minutemen stalemated me, despite heavy american losses. They are just too strong and mobile. Sure, they can't take me out, but neither can I progress towards Washingon DC. I think I have to go for Babylon and only take Boston with my ships. Bottom line: sometimes Longbowmen aren't enough.