The poster was created by artist Leon Helguera in 1943 and was part of a larger series of propaganda posters produced by the OWI during WWII to promote unity and support for the war effort. It's a bilingual poster, with both English and Spanish text, and was likely intended to appeal to a diverse audience, including Mexican Americans and Puerto Ricans, encouraging them to join the fight for victory. It's a really interesting piece of history and a great example of the role that art and propaganda played in rallying support for the war effort during WWII.  

Leon Helguera was a Mexican-American artist, illustrator, and cartoonist who was born in Mexico in 1899.
He started his career working for Mexican publications before moving to the United States. In 1943, Helguera was commissioned by the U.S. Office of War Information to create a series of propaganda posters, including the one you mentioned. He also designed the first United Nations stamp and several U.S. postage stamps.

Museum-quality posters made on thick matte paper. Add a wonderful accent to your room and office with these posters that are sure to brighten any environment.

• Paper thickness: 10.3 mil
• Paper weight: 189 g/m²
• Opacity: 94%
• ISO brightness: 104%
• Paper is sourced from Japan and printed in the USA