Pope Francis has stressed that the massive Russian attacks on Ukraine "cannot be justified in any way", calling them "unworthy and unacceptable". Source: website of the Ukrainian Greek Catholic Church (UGCC), Head of the UGCC His Beatitude Sviatoslav Details: On 29 December last year, His Beatitude Sviatoslav, the head of the UGCC, sent a letter to Pope Francis, informing him of the tragic consequences of Russia's largest missile attack on Ukraine.