The bloc’s eastern members rely on the Russian network for energy supplies The Ukrainian General Staff has confirmed that one of the targets of Tuesday’s mass drone attacks was Russia’s Druzhba oil pipeline system, a key delivery route to EU countries, according to a statement on its official Telegram channel. Druzhba is one of the world’s longest networks, transporting crude some 4,000km from Russia to refineries in the Czech Republic, Germany, Hungary, Poland, and Slovakia “Ukraine’s security