c+P


The steps you should take to induce the War up north are:

(1) Kill all the pumpkin guys around the large pumpkin just south of the grain silos where Eochai is known to spawn.

(2) Kill the Tuatha de Dannon around Jack-in-Iron's throne.

(3) Head up to the far N zone and go to the valley that Vidiotmap.com shows Jack-in-Iron's spawn point at one end and Eochai's at the other.

You are looking for fights between the Red Caps / Tuatha dD and Cabal / Pumpkin Men. Clear out those fights.

Clear out any mobs that are just standing around in this valley. Have a look in the sky and see if there are any Cabal just floating around.

What you are looking to do is to escalate the war between the two sides. You get it right - that there have been some battles in the war but some stragglers exist - and then by clearing out the remaining mobs you'll allow new waves of combatants to fight, eventually leading to the Croatoa giant monsters coming to play.

This isn't a 100% method of force spawning them, but if the war is on, you'll more than likely be able to move it towards its conclusion.