As Kurdish forces attempt to defend their land from Turkey, Russia began the Sochi peace conference and its allies continued to gain ground.
China's official military newspaper compared nuclear weapons to a sword of Damocles hanging over humanity, but said upgrades were necessary.
Leading NATO and Russian commanders will have their first meeting since 2013, when Obama banned talks, blaming Putin for the crisis in Ukraine.
India was only the fourth country in the world to successfully intercept a ballistic missile.
The U.S. is widely considered the world's top military power, but Russia and China are rapidly improving together and North Korea has achieved historic success.
China and Russia have urged a peaceful solution to the nuclear crisis with North Korea, but if the U.S. invades, they're preparing to fight.
The president made the comments ahead of his visit to the FBI.
"NATO needs to take note of the enormity of China's influence," a former NATO and U.S. military leader said.
The Japanese government mandates a limit of 40 years for nuclear reactors; the Tokai No. 2 has been running since 1978. Today marked the fourth time Japan Atomic Power Co. filed an application with the Nuclear Regulation Authority for an extension.
The missiles flew almost the full length of Russia, hitting targets both in the far-east and northwest, as Russian warplanes practiced fire on ground targets nearby.
The president can take action against an actual or imminent threat, but none exists so far, according to the New York City Bar Association.
If Puerto Rico takes Tesla up on the offer it could stop power outages and save 78 million gallons of fuel per year.
Scientists harness the power of lysozyme, a protein found in tears and egg whites, to make energy.
A day after the Navy's fourth collision in the Asia-Pacific, the head of U.S. forces in the region warned adversaries not to perceive the military as weak.
The HMS Queen Elizabeth and the HMS Prince of Wales aircraft carriers are being sent to underline London's belief in a "rules-based international system" of trade.
China's Haiyi (or "Sea Wings") unmanned underwater glider has broken world records and can instantly detect U.S. submarines in the tense South China Sea.
But French President Emmanuel Macron, Trump's top handshake rival, has helped push his country to number one.
China says the military move is one of peacekeeping, not aggression.
The U.S. and Russian militaries have found themselves increasingly at odds in the world.
President Donald Trump has changed course a number of times on Syria, but recent events pit him directly against Russia and Iran.
The U.S. is finishing up naval exercises with NATO allies in the Baltic region, but Russia has an even bigger display of military might in the works.
India is concerned that China is building a string of alliances that surround it, kicked off with its base in Djibouti on the northwestern edge of the Indian Ocean.
The Sologic eTree was 'planted' in the small French town of Nevers on Sunday.