How Russian S-400 defence system works | Why U.S. is against it | S-400 vs. Israeli Iron Dome

In this video, we’ll learn how the Russian S-400 missile defense system works, why it is seen as a threat to United States stealth technology. Difference between S-400 and Israeli Iron Dome. Hindi Channel -- Geography playlist -- Economy playlist -- Current Affairs playlist -- Indian history playlist -- Govt of India schemes playlist -- Map based learning