James Montgomery Flagg.

1918 be a U.s. Marine
Once again America is placed in the fore front and the military as a stronge force backing it up. Composition, and placement is mainly used in this ad,
1944
This is an example of the characteristic of the movement because it places America as Superior to everyone else. The only country that is able to get things done. James uses Typeface, and illustration to get the point across.
WW1.
This is an example of the characteristic of the movement because it places America at the top of everything the flag is in the sky and it is painted in an up angel.
James uses composition, along with contrast and typeface.