Sword Empire is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

You are a warrior, tactician, and general. Lead your troops to glory and your name will be known in infamy. Fail and watch as the sands of time destroy everything you built. Your time is close upon hand may you reign long.