Answer:
a preliminary or preparatory statement; an introduction.
Explanation:
the introductory part of a statute or deed, stating its purpose, aims, and justification.
by granting US veterans benefits to attend universities
This was a quote after WWI, the "war to end all wars". At the end of the war, Germany was basically blamed for the war in the Treaty of Versailles. They had to pay an immense amount of money to the other countries. In WWII, Germany got its "revenge".
The declaratory act is what gave parliament the right.