Feb 6 (Reuters) - Nighttime shelling by Ukraine inflicted "serious damage" in the Russian city of Belgorod, near the border, the region's governor said early on Friday. Vyacheslav Gladkov, in a solemn video posted on Telegram after midnight,

The U.S. and Russia have agreed to reestablish high-level, military-to-military dialogue for the first time in more than four years.

A Russian official said Moscow is ready to respond with military measures if the United States deploys its missile defense program to Greenland.

The U.S. on Thursday announced the resumption of dialogue with Russia's military, which had been suspended since 2021.

The Ukrainian president also said a large number of people were "officially missing", meaning the total death toll is thought to be much higher.

Ever since its full-scale invasion of Ukraine, experts say Russia has stepped up its hybrid war on Western Europe. Attacks on critical infrastructure or using drones to shutdown airports are meant to undermine support for Ukraine.

Russia could face significant losses in Venezuela after a US operation disrupted years of strategic ties with Caracas.

Trump's Greenland focus highlights urgent Arctic security needs as Sen. Sullivan reveals new U.S. defenses against Sino-Russian threats in Alaska.