The post appeared online on Sunday afternoon.

"I am grateful to Poland's Prime Minister Mateusz Morawiecki for readiness to support COVID-19 vaccination at NATO HQ. Solidarity and resilience are at the heart of NATO. Poland is a strong Ally who has provided support to many other Allies and partners in our joint fight against the pandemic,” the high NATO official wrote, addressing the head of the Polish government.

"We have been officially invited by NATO to have Polish medical teams vaccinate employees of the Alliance headquarters in Brussels," commented Prime Minister Morawiecki.