Finally had my new scanner in place and as promised in my other thread (
http://www.sgforums.com/?action=thread_display&thread_id=198594), I have uploaded 2 newspaper
(Lianhe Zaobao & ST) cutting here which showed a pic of a then-Soviet AF Su-27UB being 'escorted' by a RSAF Viper & Tiger while the former dropped in for AA'90.
As reported, the 'guest' in the Flanker was crewed by then-RSAF chief BG Michael Teo.
Well, most of us had seen pics of Soviet AF jets being intercepted escorted by NATO or Asian AF (esp during the Cold War) and even though this attachment does not show this happening to the RSAF!
But it is perhaps one of those rare case/s where RSAF jets flew in formation with a Soviet/Russian AF combat jet.