Russia and India signed the S-400 deal. India will acquire 5 S-400 Air Defence system from Russia. The signing ceremony took place in New Delhi During Russian President Vladimir Putin's ongoing visit to New Delhi for an annual summit.

“The deal was signed on the fringes of the summit,” Kremlin spokesman Dmitry Peskov told Reuters. The contract is estimated to be worth more than $5 billion and gives the Indian military the ability to shoot down aircraft and missiles at unprecedented ranges.

But the United States has said countries trading with Russia's defence and intelligence sectors would face automatic sanctions under a sweeping legislation called Countering America’s Adversaries Through Sanctions Act (CAATSA).