Svala has a point in Knowledge: Geography. I am proposing Terrain Strategy, that is, the way that different geography and terrain affects war and fighting.

It would be used to answer questions like "What will be the impact of knee deep swampy water on how fast someone can move?", "How does the mesa-like terrain of Arkaudon affect the supply of water to the city?" and "If I am here, and the enemy is over yonder, who would have the tactical advantage"

I am aware this has at some level a degree of overlap with Survival or Knowledge: History.

Note: Though Svala would have knowledge like this from Ilfreann, this is NOT a request / proposal for a legacy knowledge area, it is a regular Knowledge area received from Knowledge: Geography