The Banished Dragon Master Becomes a Warrior in the Neighboring Country Where He Was Picked up 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

Breed, an old dragon master, is not only fired from his job but also exiled from his country…but the dragons love him and come with him!?
The story of building the strongest country with an old man and 100 dragons!