It's in the province map where battles are fought. From here you are able to conquer new turf by laying siege to a sector and then attacking it, with help from your guild members.
Sectors are represented by hexes in the province map. Your guild must conquer sectors - and defend them from invasion - to expand its territory. Conquering a sector is in two stages - first you lay siege, then you must attack!
Sectors are coloured according to who owns them:
Red - Enemy guild.
Green - Your guild.
White - Neutral (NPCs).
When you open the Guild province map for an era, you will notice that some of the map is dark, which indicates unexplored, unclaimed territory. The active area is where you can land your first army and establish your guild's headquarter.
Which sectors to attack
When you initially enter a province map, you are able to place a siege army in any of the sectors in the landing zone (white area), or on a river sector next to or in another guild's area. The rest of the hexes still belong to the NPCs but can only be attacked if you control an adjacent hex.
You can see in the map above if a sector is under siege, as it has an icon with crossed swords above it. A shield icon above a sector means that the sector is protected, as it was recently conquered and cannot currently be attacked. Protected sectors also do not count for attacking and placing siege armies. This means that if you only have one, protected sector next to an enemy sector you want to attack, you will need to wait until the protection is lifted from your sector before you are able to deploy your siege army there.
The event log records actions made by your own guild members and enemy guilds. You can access it from the province map by clicking the event log button in the menu at the bottom left of the screen.
Three different tabs are available in the log:
Your guild actions
Enemy guild actions