Sweden’s Foreign Minister Tobias Billström has warned that Russia may attack NATO states if it wins the war in Ukraine. Sweden recently became NATO’s 32nd member state, prompted to join like its neighbour Finland in response to Russia’s invasion of Ukraine.Sweden could play a crucial role in a possible conflict between Russia and NATO, given its strategic position on the Baltic Sea and its significant naval assets. And the Swedish island of Gotland, which lies between Sweden and the Baltic States, is seen as key to a defence of the Baltics if Vladimir Putin should mount an attack.Billström spoke to DW’s Richard Walker in Berlin, discussing what NATO needs to do to get ready in the Baltic region, the importance of supporting Ukraine, whether Sweden is doing enough to support Kyiv, and whether he remains hopeful despite the current pessimism over the course of the war.