Which iconic military recruitment advertising campaign featured a pointing figure and was so successful that it was adapted by multiple countries during both World Wars?

In the world of military history, recruitment campaigns have played a crucial role in building armed forces during critical periods. Beyond battlefield tactics and weapon systems, the psychology behind military advertising has shaped national security and military readiness. This trivia question focuses on one of the most successful and enduring military recruitment advertising campaigns in history - one that dramatically influenced enlistment numbers and became a cultural phenomenon that continues to resonate today.

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"Uncle Sam Wants You" (created by James Montgomery Flagg for the U.S. Army in 1917)
"Your Country Needs YOU" (created by Alfred Leete for the British Army in 1914)
"Be All You Can Be" (created by N.W. Ayer & Son for the U.S. Army in 1981)
"I Want You For The Red Army" (created by Dmitry Moor for the Soviet Army in 1920)