Fire Emblem Awakening [SPOILERS INSIDE]

I have a question. If you go up to a character from the Bonus Box, say I want Eliwood on my team, if I choose "Fight," does that mean I can add him to my team if I beat him? I've heard of "beating characters makes them able to join your team," but I don't know if it's possible with this characters. If it is, it's probably a lot easier than buying them with gold.

Yeah, for all the bonus box characters if you fight them and win it'll give the the option to recruit them. The only thing is that when you do add them to your team they come completely unequipped.