Putin's war: One month on, NATO on high alert as Russia recalibrates strategy in Ukraine

One month after the shock of Russia invading Ukraine, how is Vladimir Putin's war going? There have been territorial gains and near-total control of the skies by Russia, but no blitzkrieg grab of Kyiv and no fatal blow to Ukraine's defences. Instead, Ukraine is proving its resilience with successes like the claimed destruction of a Russian landing support ship in the Russian-occupied port of Berdiansk, which is strategically located to the west of the besieged city of Mariupol in the Sea of Azov.