India, Feb. 5 -- The United States and Russia entered another phase of increased tensions after the New START treaty expired, which was their last nuclear arms control treaty. The world now faces rising worries because the United States and Russia fail to resolve their disagreements about Russian oil,

A new report warns that the number of soldiers killed, injured or missing in Russia's war in Ukraine could reach 2 million by spring

Ukraine-Russia war latest: Putin and Zelensky to exchange 314 prisoners as US envoy claims peace talks ‘productive’ - Moscow pressures Zelensky to give in over Donetsk as talks continue in Abu Dhabi

While the three countries, with Washington as the mediator, huddled in Abu Dhabi, Russia continued its assault in Ukraine and virtually incapacitated its energy grid amid harsh winters

As losses mount, the pace of Russia's advance has at times been slower than the Battle of the Somme during World War I, a report says.

Russia's gains on the battlefield have forced Natalia to rebury her husband in Kyiv.

A first day of talks between Ukraine, Russia and the United States aimed at brokering an end to the war in Ukraine concluded Wednesday in Abu Dhabi, with Kyiv describing negotiations as “substantive a

New European measures to crack down on Russia’s shadow fleet could severely hurt its economy at a time when it is looking increasingly vulnerable.

A new CSIS report warns Russia-Ukraine war casualties could reach 2 million by spring 2026, with Russia reportedly suffering 1.2 million casualties so far.

Russian missiles and drones have pounded Ukraine’s energy grid in recent weeks. That has plunged people into frozen darkness in one of the country’s coldest winters on record.