Marth was the reason for the Fire Emblem in the West.
One source states, "Before Smash Bros. Melee, Western audiences had no idea about Fire Emblem. Marth was an unlockable character alongside Roy, and the two hailed from a series that had yet to get enough attention to warrant a Western release. The popularity of Marth's character in Melee changed all that and Fire Emblem for the GBA was the first game in the series to be localized for Western audiences.
Fire Emblem found a cult following in the West, but each new entry did little to expand upon the already small audience. Fire Emblem looked as though it would be going the way of the dinosaur and Fire Emblem Awakening was planned as a swan song for the series. But things took a different route than expected and Awakening was a huge success, re-popularizing Fire Emblem and making it one of Nintendo's most valuable IPs"(Reid).
