Poland’s door is wide open to Ukrainians – we know these refugees could be us

A Polish firefighter greets children who arrived in a Ukrainian train from Lviv. Photograph: Yara Nardi/Reuters

The Ukrainian anthem has been playing from the medieval tower of Kraków’s most important church, St Mary’s Basilica. St Mary’s Trumpet Call, a traditional bugle call played every hour, gave way to this sign of extraordinary times.

In Warsaw’s centre, by contrast, the now famous response to the Russian navy of soldiers defending an island in Ukraine is displayed in Cyrillic script on a huge illuminated sign: “Go fuck yourself.”