The Eastern Marches

The Eastern Marches are hundreds of leagues of grassland, moors, and plains that stretch across the northern border of the Red Mountains. Existing in a constant state of battle-readiness, the marchers of these lands have fought back and forth with the Dornish and each other for thousands of years, and have garnered a reputation for their grinding martial culture and century-long feuds[1]. The harsher sister of the Western Marches, the Stormlords of the Eastern Marches keep a tight grip on their power and maintain some of the finest fighting men in Westeros[2].
Harsh, stubborn, and avenging, marchers are slow to forgot slights and pursue vengeance for misdeeds true or false at great cost to themselves. The continuous wars and raids from both sides of the marches has left little room for higher culture or religion, bar lengthy ballads of conflict in the marches[3]. They have a highly secular approach to ruling - trusting in themselves above any god and tree. As such they keep their godswoods neat, small, and pragmatic, and weirwoods do not take easily to the dryer soil here.