Here is the full list of all 35 Kingdom Wars achievements.
Ally with all NPC towns through Conquest or Diplomacy
Successfully siege all 3 capitals
Successfully Lay Siege to the Orc Capital Makkada
Successfully Lay Siege to the Elven Capital Illas Tiltos
Win 100 PvP matches
Have all 3 main dragon types in your homeland
Successfully Lay Siege to the Human Capital Dagbor
Win 50 PvP matches
Complete over 40 quests
Visit the Dwarven mines of Dunn Erghast or the Dwarven Marches
Visit the Dragon lands of Sssilistra
Visit the inhospitable land of Bal Ratha or the Desolate Hills
Explore the lands of the Orc realm of Gokkholm
Explore the lands of the Elf realm of Nhob'ru
Win 10 PvP matches
Acquire 200 Wealth
Have at least 5 dwarven battalions defending your homeland
Accept a co-op siege battle request
Have 5 armies on the world map
Build a large city
Establish trade or an alliance with a non-allied city through diplomacy
Make 5000 gold profit at a town market in one visit
Win a PvP match
Add a player to your Friend list
Acquire 5000 Stone
Acquire 5000 Wood
Browse the in-game help topics
Explore the lands of the Human realm of Teria
Complete your first world map army quest
Construct one of the military buildings available to you
Acquire 10000 Gold
Acquire 5000 Food
Build 5 or more houses, huts or residences
Construct one of the economy buildings available to you
Complete any of the tutorial scenarios