(ANSA) - ROMA, 16 MAR - epa09828654 A banner depicting
Vladimir Putin, mocked as Adolf Hitler, hangs on a tenement
house at Freedom Square in Poznan, west-central Poland, 16 March
2022. Russian troops entered Ukraine on 24 February prompting
the country's president to declare martial law and triggering a
series of announcements by Western countries to impose severe
economic sanctions on Russia.