Good point. In fact, this could be it's own separate post on how the DS operates:

https://en.wikipedia.org/wiki/Gleiwitz_incident

The Gleiwitz incident (German: Überfall auf den Sender Gleiwitz; Polish: Prowokacja gliwicka) was a false flag attack on the radio station Sender Gleiwitz in Gleiwitz (then Germany and now Gliwice, Poland) staged by Nazi Germany on the night of 31 August 1939. Along with some two dozen similar incidents, the attack was manufactured by Germany as a casus belli to justify the invasion of Poland. Prior to the invasion, Adolf Hitler gave a radio address condemning the acts and announcing German plans to attack Poland, which began the next morning.[1] Despite the German government using the attack as a justification to go to war with Poland, the Gleiwitz assailants were not Polish but were German SS officers wearing Polish uniforms.