Because at that time, The pathway to Lusittiana was a territory conquered by the Germans troop during their conflict with Great Britain in World War I.
The Germans give the warning following the international law of warfare at that time that indicates each nations should give warning to normal civilians if they intended to target a certain area.
<span>to achieve civil rights equal to those of whites color, including :
equal opportunity in employment
housing
education
as well as the right to vote
the right of equal access to public facilities
and the right to be free of racial discrimination</span>