Trump's comments last month sparked fears of a new nuclear arms race and concerns major powers would restart full testing.

Russian foreign minister Sergei Lavrov said he was ready to meet US secretary of state Marco Rubio but that Russia would not abandon its core conditions for ending the Ukraine war. "Secretary of state Marco Rubio and I understand the need for regular communication," Lavrov, Putin's foreign minister since 2004, told state news agency RIA Novosti.

Germany and the United Kingdom have warned of the growing threat posed by Russian and Chinese space satellites, which have been regularly spotted spying on satellites used by Western powers.

Putin orders nuclear test preparations after Trump announces U.S. will resume testing. Russia vows proportionate response to American nuclear program moves.

The Russian Defense Ministry said Wednesday that Ukrainian troops should surrender to save themselves in Pokrovsk, a transport and supply hub seen as a gateway to bigger nearby cities.

Restrictions on publishers and sellers are more severe. Volumes are being pulled from shelves or redacted, yet bookstores remain important sources of community.

Russia said on Saturday that its forces continued to advance in grinding battles around the key towns of Pokrovsk and Kupiansk, and had captured a tiny village in eastern Ukraine.

The Kremlin is focusing its fire on Pokrovsk, a gateway to the Donetsk region, which Russia’s president, Vladimir V. Putin, has long coveted.

The Justice Department has embarked on a fresh investigation into one of President Donald Trump’s chief grievances, issuing a flurry of subpoenas related to the U.S. government’s inquiry into Russian interference in the 2016 presidential election.

Russia’s latest drone and missile attack struck stations powering two major nuclear plants in Ukraine, putting Europe in danger of a “catastrophic incident,” Kyiv warned on