What was the reason of uncle sam poster

Explanation:

The purpose of the propaganda was used to encourage men to enlist in the military and to encourage civilian support for the entry of the U.S. into World War I. By using Uncle Sam who was officially adopted as a national symbol of the United States of America in 1950, the advertisement showed patriotism and was a call to action for young men to fight for the freedoms of the United States.

answerthomas malthus wrote an essay on the principle of population;

hope this ,(malthus)