(Free Beacon / Worthy News)– Ukrainian border guards stand grim-faced and nervous at the remote Marynivka checkpoint on the frontier with Russia, fearing an attack by pro-Moscow separatists at any time.
Last week they fought off an assault by up to 150 rebels seeking control over supply routes from Russia to bring in arms and other war materials, forcing them to abandon two armored personnel carriers strafed with machine gun fire.
Ukraine's inability to police parts of its own border underscores the military weaknesses President Petro Poroshenko has to deal with as he tries to end the insurrection that began after his Moscow-leaning predecessor was toppled in February.
His promise to regain Crimea, annexed by Russia in March, also puts him at loggerheads with President Vladimir Putin, complicating dealings with Moscow to plug the power vacuum at the border where Kiev says Russia gives rebels a green light.
"The border can't be closed in a day, and without that the anti-terrorist operation (against the separatists) could continue endlessly," Ukrainian military expert Dmitry Tymchuk wrote on his Facebook page.