Ukrainian President Volodymyr Zelensky visited the war-torn southern frontline on Saturday for the first time since the Russian invasion as “fierce battles” raged again in the eastern Donbas region. Making a rare trip outside Kyiv where he is based for security reasons, Zelensky travelled to the hold-out Black Sea city of Mykolaiv and visited troops nearby and in the neighbouring Odessa region. Russian forces have directed their firepower on the east and south of Ukraine in recent weeks since failing in their bid to take the capital Kyiv after the February 24 invasion. “It is important that yo…