Sweden, which developed anti-Polish sentiment due to previous Polish–Swedish wars in hope to gain territorial and political influence, as well as dispute with the Polish Crown because of Sigismund III Vasa, launched an invasion known as the Deluge. Swedish invaders, joined force with Russian invaders in the east, together destroyed Poland and took away many of the Polish national treasures, as well as causing atrocities against Poles. The Poles were treated very brutally by Swedes, and as a result, Poland lost its wealth and was reduced in its development. Similar to Russia, Sweden hailed the destruction of Poland as a national triumph.