Russian jets are soaring over the waters of the Mediterranean, and Syria has moved new air defenses near Assad's presidential palace.
President Trump could decide whether to attack Syria as soon as "later today," a move that could draw a Russian military response.
Despite peace talks on the Korean Peninsula, Russia says the U.S. is risking a war with military exercises and "maximum pressure" against Kim Jong Un.
China's new defense chief chose Russia for his first visit and pledged support at a time when Moscow's relationship with the West has deteriorated.
The anti-satellite weapons are part of massive pushes to upgrade and update their militaries.
The RS-28 Sarmat could be seen taking flight as both the Russian and U.S. leaders discussed an "arms race."
The U.S. and Russia have both contributed to the fight against ISIS, but their goals for postwar Syria differ.
Vladimir Putin said the RS-28 Sarmat has no range limits and "is untroubled by even the most advanced missile defense systems."
Russia's defense minister gave a detailed review of his country's military upgrade in the Arctic.
A top Russian general reportedly intervened to stop an attack from the U.S., preventing a repeat from last month in which many Russians were killed.
Both Russia and Japan claim the so-called Kuril Islands, in a dispute stretching back to World War Two.
The tests come as Russian President Vladimir Putin revealed new nuclear missiles and Moscow's relationship with the West took another major blow.
Russia has chosen the names of three advanced weapons recently revealed by Putin, but what do they mean?
Russia's top general discussed leading issues with his U.S. counterpart and the NATO commander as Trump defended Putin on Twitter.
Neither Russian President Vladimir Putin nor Chinese President Xi Jinping expected much opposition this weekend, but their victories resound worldwide.
The country's armed forces have rallied 8,000 troops for the drills across 19 training ranges, including two breakaway regions in neighboring Georgia.
Vote now, the contest ends soon.
Russian Foreign Minister Sergey Lavrov warned that Moscow "made it clear" the U.S. would not be allowed to attack the Syrian military.
Russia said the U.S. may risk "opening a Pandora's box" if it takes their military rivalry to outer space.
A Chinese researcher was awarded for her achievements in “electromagnetic launching technology.”
Less than two weeks after Russian President Vladimir Putin showed off advanced weapons, his officials are warning the U.S. against action in Syria.
Once found only in works of fiction, Russia's deputy defense minister said such devices were now a very real and necessary tool of modern warfare.
Russia's new RS-28 Sarmat intercontinental ballistic missile is allegedly capable of wiping out Texas, but Putin's demonstration took aim elsewhere.
Putin asked Russians to name the country’s prospective new weapons, but the internet had other plans.
Recorded phone calls suggest around 215 Russian mercenaries were killed by U.S. artillery and airstrikes in a battle in Syria on the night of February 7.