[BobL]

You seem to have skipped one (likely on purpose):

https://en.wikipedia.org/wiki/Joint_Control_Commission

By the way, the General Assembly’s votes are NOT binding (but then you knew that too).

[tlozo]

As per the 1992 agreement with Moldova, Russia has a right to keep 2,400 troops in Transnistria. However, as of 2006 the number of Russian troops was just 1,500, with between 349 and 385 of those assigned to JCC at any given time.[3]

Initially, not forever. That's why the agreement states Russia agreed to gradually withdraw those troops, which it has not.