Age of Empires IV: Anniversary Edition

This achievement can be obtained in the 7th French mission called Retake Normandy in the Hundreds Year War campaign. After taking the first town and taking control you must age up in order to research the chemistry technology. After this is researched you will be told that controlling three strategic resource locations will provide benefits to cannon productions. Simply complete the secondary objectives to earn this achievement.

The first one I took over was the Trade route on the right side. I simply made a market right next to the trader building and put a few towers to protect it from enemy skirmishes. Once it's secure you can focus on the next area.

The second area I took over was the mines to the left. Simply take out the enemy forces stationed here. I didn't see many enemy skirmishes but built a tower just in case. Once the buildings turn blue and are under your control you will have finished in this area.

The third and final object is to raze the seaport town by the river. Take out the enemy units and destroy all the buildings. As soon as the narrator says the brothers had all the strategic resources to build cannons you are almost done. Make sure to upgrade the cannons to royal cannons before producing them. If the achievement hasn't popped out simply build a few more cannons until the objective to build cannons is satisfied. Mine unlocked after building a few regular cannons.