This is my current situation. I started in a very bad starting point with no real natural border, on the Aran map. Usually, I was just restarting the game when I began in a such situation but this time, I wanted to see how good I would fare with Marignon.
At first, I had R'lyeh for northern neigbbor and they were using massive armies of illithids. I feared them. But fortunatly(I would say it's fortunate, since I'm playing Marignon), they got conquered by Ermor. Anyways, I have always been at peace with my northern neighbour and I wish to keep it this way for now.
The problems come from the south. The first and only empire I truly attacked up to now is Caelum. I had them almost defeated( I was besieging their capital) when an unexpected attack from lizardmen forced me to halt my offense and forced me to retreat to my initial borders. Worse, I did not have sufficient troops to create an efficient front line so I'm plagued with lizard troops deep in my territory.
So I'm curious about what the experienced dom2 players you are could suggest me to do. Try to finish Caelum as quickly as possible? Try to concentrate on defensive and establish a solid line of defense? Something else?