Russian exercises involved submarines dueling in the Baltic Sea, as well as practicing detecting, tracking, and evading enemy subs.
War experts have suggested that Ukraine may be degrading Russian air defenses, possibly with the coming F-16s in mind.
Russia and North Korea's budding partnership and new mutual defense pact may be putting China in a tough spot.
The precision "fire and forget" AGM-179 Joint Air-to-Ground Munition was fired at a moving sea target in waters off Japan.
A video shared by Chinese state media shows a US Navy plane dropping something into the sea. China called it a submarine detector.
Whether the US rare earth minerals stockpile is ready for an emergency is shrouded in mystery, but there are indications it isn't.
The show of force comes amid continued tensions with Russia and follows the recent visit of a Russian navy flotilla to Cuba.
As Putin and Kim grow closer, there's the possibility that North Korea could get its hands on winning weapons technology.
The Army said two of its next-generation Precision Strike Missiles successfully struck a moving maritime target during a sinking exercise.
The USS Roosevelt arrived for military exercises with South Korea and Japan just days after Russia and North Korea agreed to a major defense pact.
An imagery analyst said that it looked like China might be using this area for some kind of target practice.
Some B-52 programs are seeing substantial delays, putting them years behind schedule, and costs are ballooning as well.
The development of autonomous pilots is moving faster than the Air Force had expected, as a flight last month showed.
A Senate proposal would require some women to register for the military draft.
Robert O'Brien's call to restart nuclear weapons testing was met with resounding criticism from experts, who called it ignorant and dangerous.
Both have much to gain from the war. North Korea is forging closer ties with Russia while South Korea positions itself as a global arms supplier.
China is rushing to build a fleet of aircraft carriers and making major technology jumps. It sees deep value in these powerful assets.
Russia only has one S-500 and has never used it before. Ukraine says it's now deployed to defend against Ukraine's relentless attacks on Crimea.
The Admiral Gorshkov frigate, now docked in Cuba, can carry an arsenal of hypersonic missiles, touted by Putin as being unbeatable weapons.
The Yasen-class Kazan is a highly capable submarine, and its strike and stealth capabilities missiles have raised concerns in the West.