Oblivian:But in seriousness.
Look at the size of Singapore. They even come (or did) to Waiouru and Tekapo to do training. If they have live fire training in SQ, they hit a neighbor or something close.
So similarly their jets are here with some nice terrain to hug and a bit of empty airspace.
Equally, on the subject of size, they have roughly our population but can afford a proper airforce....