Here is the full list of all 13 Path of War achievements.
Unlock Guided Missiles.
Reach Base Level 2.
Defend against an enemy attack.
Collect 1500 Steel.
Relocate your base.
Join an alliance.
Loot a Power Rod.
Unlock the Armored Car.
Be less than 2200 miles away from Washington D.C.
Be less than 1000 miles away from Washington D.C.
Reach Washington D.C.
Send support to an ally.
Destroy another player base.