Hey FH, you're enjoying the different ways to win at monarch it seems.
And about early war or not, this should really be situationnal.
Like lilnev said, a second capital site is worth a lot of hammers, but razing a few border cities is worth almost nothing (I compare the cost in hammers for axes with the value of building research instead, to have some rule of thumb).
I have a few situation in mind that lead to different answers :
- boxed in = war. It's not about what you capture, it's because later you won't be able to go to war efficiently. The trigger is if feel I'm not able to settle 4 good cities on "my land". I then forget about settlers and go to war.
- very near neighbour = war. second capital + free workers is enough to be greedy.
- very good land to settle = no war. I want my cities in the right places, not inAI fashion.
- specific wonder strat = no war. You just can't build axemen and great wall + pyramids in the same time.
How do you finance the war? I've an issue of builiding for war and then running out of money and being forced to disband units. I assume you're playing on Normal speed since, from what I've read on the forums since I've not really played any of the other speeds, on the slower speeds you don't have the finance issues come up nearly as often.