Newsweek has broken down how Moscow, Beijing, London, New York, Los Angeles, Tokyo and Paris would be affected if any of these cities were targeted by a W88 exploding in an airburst, according to NUKEMAP, a resource created by by Alex Wellerstein, a professor and historian of nuclear technology.

Touting new weapons tests, Moscow signals to Washington that it must contend with the Kremlin’s power and negotiate.

The 9 countries armed with nukes as US set to resume weapons testing - IN FOCUS: There has been renewed focus on nuclear arsenals after Russia’s invasion of Ukraine, James C Reynolds and Maryam Zakir-