The last lifelines into besieged towns along the eastern frontline for Ukrainian troops, caught in a web of increasingly lethal and sophisticated drone warfare, rely on a technology millennia old: a fishing net.

While faster than before, Russia’s territorial gains remain minor, with only 5,000 square kilometres (1,930 square miles) of Ukraine taken since the start of last year, less than 1% of the country’s overall territory, according to a June report from the Center for Strategic and International Studies, a Washington-based think tank.

At the end of the day, the EU needs U.S. weapons to keep Ukraine afloat into its struggle for survival against Russia.”

Ukrainian swimmer Vladyslav Bukhov talks to CNN Sports about his unlikely journey to world champion and training in a war zone.

Ukraine has relied on this innovative tactic to wreak havoc on Russia's Black Sea fleet, damaging or destroying a number of warships.

A former Ukrainian prisoner of war, Stanislav Tarnavskyi, has embraced life with urgency since his release in April.