Crucially, anyone who joins the Polish-trained unit will have the right to return to Poland after completing their service in Ukraine, the official said.
Zalewski emphasized that only volunteers can join the legion, meaning Poland "does not participate in this [recruitment] process at all." He added that volunteers wishing to join the legion will be "drafted into the Ukrainian army according to Ukrainian regulations at consular offices" and will undergo basic training provided by the Polish army on Polish territory.
After training, soldiers from the Ukrainian Legion will deploy to Ukraine, where they will "serve on the front line in accordance with Ukrainian law," he said.
"They will have the right to return [to Poland], which is also important, so that after completing their military service, they can go back to where they came from and reunite with their families," added Zalewski.
Ukraine and Poland agreed on a framework to establish the Ukrainian Legion on Polish soil in the bilateral security guarantee agreement signed on July 8.
Ukraine’s Defense Minister Rustem Umerov said volunteers would receive modern training from allies in Poland, Lithuania, and other EU countries. The legion will be equipped with the best equipment, at Poland’s expense.