- The S-400 air defense missile system is of the highest caliber.
- This defense system was bought by India from Russia.
The Indian Air Force has placed an S-400 air defense system on its borders with China and Pakistan. - The Indian Air Force has deployed three S-400 air defense systems along the China-Pakistan border.
- In the fiscal year 2018-19, India inked an agreement with Russia to purchase an S-400 air defense system for Rs 35000 crore.
- Russia’s S-400 defense system is a transportable surface-to-air missile system.
- It is the world’s most hazardous operationally deployed long-range surface-to-air missile system.
- This system is 30 kilometers long. At up to 400 kilometers altitude. It is capable of engaging all forms of aerial targets, including airplanes.