When Germany invaded Poland, The Luftwaffe started providing tactical support
to the German Army. The Luftwaffe also started eradicating strategic objectives
and bombing cities in Poland. As the war continued to expand, bombing by both
the Axis and Allies rose significantly. Military and industrial complexes were
targeted, but so were cities and civilian populations. Targeting cities and civilians
was viewed as a psychological weapon to break the enemy's will to fight. German
air dropped weapons during the Second World War, advanced in accordance with increasing
aircraft speeds, range.
The Warplanes of the Third Reich.
German Aircraft of the Second World War.
For a complete list of sources