To access the window that allows you to make or break treaties and other agreements with other players: * Click on the picture of a building above the "next turn" button in the lower right corner of the screen and select "nations", or hit "F9", to open up the nations screen. * Click on the "list" button near top left that looks like three horizontal lines. * Select the nation you wish to negotiate with. * When information about that nation comes up, you may examine the information (and exit or choose another nation if you like) but to talk to them you need to click on the picture of a building in the upper right hand corner of the "nations" window, just below the button marked "X".