Since this is a licensed anime, the method of watching depends on whether you are looking for official streaming sources or download/archive methods.
Why Watch the English Dub in 1080p?
Standalone (you do not need to watch the 2003 version first) Fullmetal Alchemist Brotherhood English Dub 1080p
So why wait? Stream Fullmetal Alchemist: Brotherhood English Dub 1080p today and embark on an unforgettable journey of alchemy and adventure! Since this is a licensed anime, the method
B. The Modern Alternative: Yuru-Subs (Yuri) Since this is a licensed anime
When it comes to the "Gold Standard" of anime, Fullmetal Alchemist: Brotherhood