Here is the full list of all 28 War, the Game achievements.
Complete the optional operation 'World War'
Gain a total of 30 stars in your career
Win a network game.
Achieve the special in the operation 'Anarchy'
Achieve the special in the operation 'Great War'
Pay close attention to the in-game guide.
Achieve the special in the operation 'Distant War'
Achieve the special in the operation 'Balance of Power'
Be awarded 5 stars in one operation
Gain a total of 10 stars in your career
Achieve the special in the operation 'The Art Of War'
Be awarded 3 stars in one operation
Occupy the city of Jakarta
Occupy the city of Tripoli
Occupy the city of Moscow
Construct and use a nuclear bomb
Build a bomber squadron
Ship infantry by clicking on overseas destination
Build an aircraft carrier
Deploy an infantry unit on the South Pole.
Point out Sri Lanka with the cursor.
Use the Suez canal with your navy.
Pay attention to the in-game guide.
Build any unit to strengthen your forces.
Join a network game.
Complete the 3rd operation in the game
Complete the first operation.
Start a battle with the enemy