So with the Russians just starting on hypersonic engine design, looks to me like they are only 15 seconds behind the US :)
Or maybe not, according to wikipedia they were doing something 20+ years ago:
First working scramjet "GLL Holod" in world flies on 28 November 1991 reaching speed mach 5.8. However, the collapse of Soviet Union stopped the funding of the project.
After NASA's NASP program was cut, American scientists began to look at adopting available Russian technology as a less expensive alternative to developing hypersonic flight. On November 17, 1992, Russian scientists with some additional French support successfully launched a scramjet engine "Holod" in Kazakhstan6. From 1994 to 1998 NASA worked with the Russian Central Institute of Aviation Motors (CIAM) to test a dual-mode scramjet engine and transfer technology and experience to the West. Four tests took place, reaching Mach numbers of 5.5, 5.35, 5.8, and 6.5. The final test took place aboard a modified SA-5 surface to air missile launched from the Sary Shagan test range in the Republic of Kazakhstan on 12 February 1998. According to CIAM telemetry data, first ignition of the scramjet was unsuccessful, but after 10 seconds the engine was started and the experimental system flew 77s with good performance, up until the planned SA-5 missile self-destruction (according to NASA, no net thrust was achieved).
Some sources in the Russian military have said that a hypersonic (10-15M) maneuverable ICBM warhead was tested.