Part IORP Orzel broke into the Baltic, searching for German targets. The search was not immediately successful, however, and the situation onboard Orzel began to deteriorate. The captain became severely ill, and mechanical problems arose. Because of the German advance, no Polish port remained for...
poland
In February 1917, the German Navy resumed unrestricted submarine warfare after a two year break. The campaign was launched in an effort to drive Great Britain out of World War.