Russia plans to test the independence of the country’s internet, known as Runet, by disconnecting it from the global Internet. The plan is the result of a new law that was proposed in the Russian parliament in December of last year. Under the law, Russian Internet service providers (ISPs) need to be able to send all Internet traffic through the infrastructure of the country’s telecommunications and media regulator  Roskomnadzor, so as not to be dependent on international infrastructure.

Since the internet is an American invention, crucial parts of the infrastructure are controlled by US firms. Security experts believe that the test, which should be conducted before April 1, could be part of Putin’s cyberwar strategy, and may also aim to bolster Moscow’s censorship capabilities.

Read more: What Happens If Russia Cuts Itself Off From The Internet