Fighters have plenty of opportunities for adventure in the Republic. The nation borders many hostile territories, particularly in the north, where Darokin borders the Broken Lands, an infamous region that is the homeland to many hostile humanoid races. Though halfling fighters would not be taken as seriously, the enormous amount of trading activity in Darokin provides much opportunity of employment for warriors who often act as guards, hired muscle, armed escorts and couriers for the many merchants of the Republic.
Congratulations, you have now successfully created a Mystaran character!
For further development of this character, consult your Dungeon Master.