Add Yahoo as a preferred source to see more of our stories on Google. Ukraine's ongoing counteroffensive is facing stiff Russian resistance and tough defensive fortifications. But the biggest threat ...

Ukraine is struggling to break through Russian minefields, a top Ukrainian general told the BBC. This is despite having Western battle tanks and infantry fighting vehicles, he said. Some troops are ...

For over a century, armies have used mines to limit the maneuverability of their adversaries on the battlefield. Recently, the Ukrainian counter-offensive was halted by an extensive network of Russian ...