 Afterward, they once again joined Miłosz's father, following him as the front moved further into Russia, where, in 1917, Miłosz's brother, Andrzej, was born.Finally, after moving through Estonia and Latvia, the family returned to Šeteniai in 1918.But the Polish–Soviet War broke out in 1919, during which Miłosz's father was involved in a failed attempt to incorporate the newly independent Lithuania into the Second Polish Republic, resulting in his expulsion from Lithuania and the family's move to Wilno, which had become part of Poland after the Polish–Lithuanian War of 1920.