Two U.S senators have urged President Joe Biden to waive potential sanctions against India over its purchase of Russia’s S-400 air defence system. They fear sanctions against India will jeopardize growing cooperation with the United States.

In 2018, India signed a $5.5 billion deal with Russia for five surface-to-air missiles, upsetting the U.S who had passed a law in the previous year stating any country engaging with Russia’s intelligence and defense sectors could face sanctions.

India says it bought the missile systems for self defence purposes against Pakistan and China.