A major prisoner exchange between Russia and Ukraine is now under way, according to a Ukrainian source familiar with the matter.

When Ukraine and Russia agreed last week to exchange their prisoners of war in a 1,000-for-1,000 swap, for tens of thousands of Ukrainians, this was a glimpse of hope.  In most cases, families and friends of Ukrainian POWs do not know where their loved ones are being kept,

Ukraine pioneered the use of small drones on the battlefield. But in Russia’s Kursk region, Moscow’s fiber-optic cables helped turn the tide.