• Ukraine’s two largest cities came under attack Tuesday from Russian missiles that killed five people and injured more than 100, officials said, as the war approached its two-year mark and the Kremlin stepped up its winter bombardment of urban areas.
  • The Ukrainian Interior Ministry said Tuesday evening that the attack killed five civilians and injured 127 as air defenses downed Russian Kinzhal missiles that can fly at 10 times the speed of sound. 
  • The Kremlin’s forces targeted Kyiv, the capital, and the northeastern Kharkiv region whose provincial capital is also called Kharkiv, authorities said.
  • There was some confusion over the death toll as Kharkiv Gov. Oleh Syniehubov initially reported one death there but later said the injured woman thought to have been killed was in a coma. He said 52 people were wounded in Kharkiv.
  • A hypersonic missile is a weapon system which flies at least at the speed of Mach 5 i.e. five times the speed of sound and is maneuverable.
  • The maneuverability of the hypersonic missile is what sets it apart from a ballistic missile as the latter follows a set course or a ballistic trajectory. 
  • Thus, unlike ballistic missiles, hypersonic missiles do not follow a ballistic trajectory and can be maneuvered to the intended target.
  • The two types of hypersonic weapons systems are Hypersonic Glide Vehicles (HGV) and Hypersonic Cruise Missiles.
  •  The HGV are launched from a rocket before gliding to the intended target while the hypersonic cruise missile is powered by air breathing high speed engines or ‘scramjets’ after acquiring their target.
  • According to a former Commander of US Strategic Command, General John Hyten, hypersonic weapons can enable responsive, long range strike options against distant, defended or time critical threats (such as road mobile missiles) when other forces are unavailable, denied access or not preferred. 
  • Apart from Russia, which announced its hypersonic missile ‘Kinzhal’ or Dagger in 2018 and has now used it for the first time in battle conditions in Ukraine, China too is reportedly in possession of this weapon system and has twice used it to circumnavigate the globe before landing near a target in August 2021.
  • The Russian Kinzhal missile is said to be a modification of its Iskander missile and was test fired from a MiG-31 aircraft in July 2018 striking at a target 500 miles away.
  • As per Russian media reports the Kinzhal has a top speed of Mach 10 with a range up to 1200 miles when launched from a MiG-31. 
  • Russia is also said to be using the missile on Su-34 long range fighter and is working towards mounting it on Tu-22M3 strategic bomber.
  • China is said to have tested a HGV in August 2021 launched by a Long March rocket. There are reports that China may use this weapon system by mating conventionally armed HGVs with the DF-21 and DF-26 missiles that it possesses. 
  • China has also extensively tested the DF-ZF HGV with a range of 1200 miles and is said to have fielded it in 2020. 
  • According to US defence officials quoted in the Congressional report, China has also successfully tested Starry Sky-2 (Xing Kong-2), a nuclear capable hypersonic vehicle prototype in August 2018.
  • In the US, the hypersonic weapons are being developed under its Navy’s conventional Prompt Strike Programme as well as through Army, Air Force and Defence Advanced Research Projects Agency (DARPA). 
  • While the US, Russia and China are in advanced stages of hypersonic missile programmes, India, France, Germany, Japan and Australia too are developing hypersonic weapons.

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