A Russian warship armed with new-generation hypersonic cruise weapons will participate in joint exercises with the navies of China and South Africa in February, the Russian state agency, TASS, said. It was the first official mention of the participation by the frigate, "Admiral of the Fleet of the Soviet Union Gorshkov," which is armed with Zircon missiles. The missiles fly at nine times the speed of sound, with a range of more than 1,000 km (620 miles), Russia says. They form the centrepiece of its hypersonic arsenal, along with the Avangard glide vehicle that entered combat duty in 2019. "'Admiral Gorshkov'…