I’m looking for a military uniform or costume. Don’t care what branch or country. Doesn’t have to be official, it’s needed as a costume.
There’s a store in the Wannian department store in Ximending that should do you. It’s on the third floor maybe–emphasis on maybe–in the corner you’ll get to if you walk all the way down the hall straight out of the elevator. There’s also a smaller one in the underground Taipei City Mall, about halfway down on the north side, just past a staircase break.