For some reason I thought they had a fully leased facility in the US, but perhaps I was thinking about the 425th squadron: https://en.wikipedia.org/wiki/425th_Fighter_Squadron That's a permanent squadron dedicated to training RSAF pilots. Singapore keeps their own planes and equipment there. The RSAF also has two other detachments in the US: https://en.wikipedia.org/wiki/Republic_of_Singapore_Air_Forc...

Also, "Singapore has the second largest permanent foreign military training presence in the continental United States, with almost 1,000 Singapore Armed Forces personnel training at any one time." https://www.state.gov/u-s-security-cooperation-with-singapor...