Ukraine Introduces Martial Law Citing Threat of Russian Invasion

Seized Ukrainian ships—small armoured artillery ships and a tug boat—are seen anchored in a port of Kerch, Crimea, Nov. 26, 2018. Pavel Rebrov/Reuters

WARSAW—Ukraine has imposed martial law for 30 days in parts of the country most vulnerable to an attack from Russia after President Petro Poroshenko warned of the “extremely serious” threat of a land invasion.

Poroshenko said on Nov. 26 that martial law was necessary to bolster Ukraine’s defenses after Russia seized three Ukrainian naval ships and took their crew prisoner over the weekend.