Good RTS War Game?

Civilization V. Must destroy Ghandi. Must prevail. Must take over the world.

Me and some friends have just started playing Age of Empires 3 again, but you could try Europa Universalis 4. the learning curve might be steep but its well worth it.

how about bf4?

If you want to rule earth: Rise of Nations
If you want to rule an alien world: Warhammer 40,000: Dawn of War: Soulstorm

Wargame ?

Company of Heroes (yes the original one)?

Rise of nations has a risk map and battles are real time like age of empires
Dawn of war dark crusade has a world map (but it's not earth) and battles are like starcraft
Defcon has a world map but the objective is to kill the most civies (instead of conquering)
Hearts of iron has the world map, in a WWII setting, it has a hard learning curve but it fits what you are looking for.
King arthur plays like total war but with more RPG mechanics (has only britain map)
tom clancy's end war has a world map and it's an RTS without base building

those are the games that i remember

How about Mount And Blade?

I really like Age of Empires II for RTS, but don't think that will be the case.

The only RTS games I know of is Warcraft, Starcraft, Command and Conquer and Age of Empires Franchises.

What about Civilization series? If not, I don't know what are you really looking for, and my advice would be "stick to total war games" or something like that.

How about Europa Universalis 4. You can war your way into a world conquest or use your diplomatic ways to annex your neghbours.

Company of Heroes.

Any of the grand scale games like you described will be turn based. If you enjoyed one of the Total War games and you want that style then I'd recommend checking out other games in the Total War series.

Here are some of my favorite RTS games which I would also recommend.

C&C Red Alert (You can get all the C&C games in a bundled pack, retail or on Origin).
Warcraft 2 (you'll need DOS Box to get it running on a modern OS)
Warcraft 3
Star Craft (works fine on modern OS's)
Star Craft 2
Age of Empires 2 HD (on steam)
Age of Mythology (also a remastered version on steam)
Company of Heroes
Company of Heroes 2

I'd also highly recommend spending more time with Civ. It can be daunting at first, but once you get the hang of it, it is a lot of fun and will give you the world conquering that you are after, although it is turn based.

Planetary Annihilation,
Supreme Commander 1/2
and then theres the Civ series

1. With world domination:
   • Command and Conquer series - all the older games are freeware, and the campaign is something like world domination. Red Alert 2 I recommend.
   • Civilization V - when talking world domination, that's the game. It's the most epic in scale, but yeah, it's big, so there're things to learn.
   • Europa Universalis games - different games are set in different historic eras - take the one you like most and off you go to dominate the world.
2. Without world domination:
   • Men of War series - that's an WW2 simulation RTS without base building - so you may not waste you time on bases, and just command units around.

StarCraft I played it since i was 11
StarCraft2 maybe is the most players RTS game

"Sins Of A Solar Empire" - nice RTS, but you must have a lot of time for this game).

There is no campaing there, but sandbox is also nice + lot of mods (Star Wars and Star Trek are also awailable)

Games I can think of with acceptable scale that might interest you.

Rise of Nations.
Rise of Legends.
Age of Empires.
Arma CTI Mode.
Blitzkrieg.
Dawn of War Dark Crusade and Soulstorm.
Sins of a Solar Empire.
Star Wars Empire at War.
Supreme Commander.

My List of Great RTS Games:
Red Alert 2 and RA2 Yuris Revenge (great when modded and still greatest RTS ever - too bad not in Steam).
Company of Heroes Series,
Dawn of War Warhammer Series,
KKND Series,
Rise of Nations,
Elysium (forgot the full name),
Tiberian Sun Series,
CNC3,
Age of Mythology,
Warcraft 3 base RTS (I hate DoTA which is a MOBA type of game),
Starcraft II,
Empire Earth,
Armies of Exigo,
Open RA,
Anno (Old World) Series,
Act of War Series,
Age of Empires Series,
CNC Generals,
Battle Realms,
American Conquest Fightback,
Cossacks Back to War,
Dragon Throne (A great unknown RTS),
Stronghold Crusader HD,
0AD,
Earth 2160,
Real War,
Star Wars Empire at War,
Star Wars Battlegrounds Clone Campaign,
Sudden Strike,
Blitzkrieg Series,
World In Conflict,
End War,
Emperor: Battle For Dune,
Dune 2000

Just play world in conflict.

Empire Earth
Empires: Dawn of the Modern World
Imperium Galactica II

Just to name some classics. All non-Steam though.

Sounds like you are after a Grand strategy game like

-Hearts of Iron
-Victoria
-Crusaders Kings
-Europa Universals
-CIV
-Supreme Ruler
-Making History
-Risk
-To End All Wars
-Commander: The Great War
-Civil War II

I haven't had a chance to start playing this games so can't recommend any one but all have of these have good reviews

Wargame Red Dragon!