Ukraine's Oplot fires at the same speed as Russia's T-90 and can even outpace it on the road, but so far Kiev has only exported the machine to other countries.
The Sokil drone system is a success, Ukraine's National Security and Defense Council announced, saying the next step is deploying the kit to the battlefield.
Ukraine's President Poroshenko said Moscow showed no signs of backing off from his country and recent military activity shows the Kremlin is preparing for a much bigger conflict.
Mattis hinted that the U.S. could send defensive weapons to Ukraine.
Moscow claims that any Russian military hardware was looted by rebels from Ukrainian government depots.
Putin welcomed the audience to the 15th annual jazz festival in Crimea—an event that his annexation drove out of the region.
"Profexer" claims he didn't intend for his work to be used by hackers who supplied WikiLeaks with information.
The military-industrial complex is more committed to exporting weapons than supplying Ukraine’s front line troops.
Ukraine and Russia face off in Twitter rematch with South Park gif, after Simpsons meme.
Moscow has poured billions into a bridge set to open next year, but Ukraine is preparing a lawsuit against it.
Russia annexed Crimea in 2014 with lofty tourism targets, but bookings for 2017 are reportedly down 30 percent.
The president went after his attorney general on Twitter and ended up taking a swipe at Ukraine and election opponent Hillary Clinton.
Kurt Volker blames the conflict in eastern Ukraine on Russia.
The British and Turkish ships dock in Odessa as Kiev warns about a regression into deadly combat.
At least nine Ukrainian soldiers have died in 72 hours.
"There was nothing spontaneous. Everything was organized and each fiddler played his role." Military sources reveal how defections helped Russia take Crimea.
Despite broad support from Russia, insurgents in eastern Ukraine sometimes bewilder Moscow, and the Kremlin claims it is happening again.
It is not the first time Russians have turned up in Ukraine under suspicious circumstances.
A Russian think tank tasked with devising the Kremlin's next strategy says Moscow's standoff must end soon.
Government sites, banks, the postal service, Kiev's airport and the Chernobyl nuclear plant were all hit by the cyberattack.
President Petro Poroshenko arrives in Washington, vowing to help Trump avoid “injustice” from Putin.
One in five Ukrainians could now be on Facebook, digital market research figures show.
No one was injured in the explosion which occurred around midnight, but Kiev has added more police to guard the embassy.
Russia’s deputy foreign minister accused the G7 of being “contaminated with the virus of their self importance.”
Ukraine's general prosecutor said it will charge Stalin and Lavrenti Beria over 70-year-old crimes, and is still investigating the mass starvation of 1932-33.