Two exercises in the west of the country will include 1,800 servicemen from 18 countries
The Ukrainian president did not give a number, but warned that Russian troops were massing on the border.
A Grexit and failure to support Ukraine would put both countries on a path to becoming failing states.
Combined Russian-separatist forces have withdrawn from Shyrokyne. But Mariupol residents remain wary.
Merkel and the EU leaders should help Ukraine out of its financial mess—or face more Russian land grabs.
Footage from a drone posted to YouTube appears to show Russian military vehicles in a neat and orderly camp.
Russia denies sending troops to help separatist fighters in east Ukraine and says Alexander Alexandrov went on his own.
Nolan Peterson, the first American journalist to embed with frontline Ukraine forces, reports on the daily Russian bombardment.
A new report from the Pew Research Center conducted in eight NATO countries found that most respondents favor economic aid over military action.
Access to independent information is critical to challenging Russian propaganda—and the East European regimes' grip on the media.
At least 273 have died, and many now lie in unmarked graves.
Despite the Russian invasion, the president is tackling the deep-seated corruption and inertia that has held Ukraine back.
Russia's repeated transgressions underscore the folly of engaging Moscow on arms-control issues.
Attack puts pressure on G7 leaders meeting this weekend to tighten the sanctions against Putin and his oligarchs.
Moscow is not expecting NATO forces to intervene if it grabs Mariupol.
Mariupol is on the road to Crimea, but taking the city is far beyond the rebels' reach without Putin's troops.