The influx of refugees from Ukraine over the past year could have led to an uncontrolled increase in unemployment in Poland and Europe, but this did not happen. European countries took immediate measures to support Ukrainian refugees and their integration into the labour markets. In Poland, at the end of January 2023, there were 15.6 thousand unemployed citizens from this country registered in labour offices, who accounted for only 1.8 per cent of the total number of unemployed. In 2022, on the other hand, more than 1 million Ukrainian citizens were legalised for work, which indicates their good integration into Polish society. In the article, I analyse the measures taken in the wake of Russia’s attack on Ukraine and show that the European economy, despite the crisis caused by the war, requires a continuous replenishment of the labour supply of workers. I address the issues of European labour markets, the activities of employment services in other countries receiving refugees and I also cite the results of research conducted in Polish and European employment services.