 If you liked
07-Ghost
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 ...then you might like
Code Geass: Boukoku no Akito 1 - Yokuryuu wa Maiorita
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Both military, action, hiden romance (depending your view), addictive story, little fantasy, and both are searching the ultimative power:
In 07-Ghost, the BlackHawks fight to obtain the Eye of Michail which contains power while the seven ghost with the help of the last throne successor of a fallen kingdom fight to gain peace.
In Code Geass, Britania fights for power and most EU + Eleven for a peacefull world to live.
In both anime, the characters have special powers:
In 07-Ghost, they have the zaiphon power and use antique fighting techniques as swords etc.
In Code Geass, they use the geass ability and highly advanced weapons.