Which military logo design change was specifically implemented to improve battlefield identification after causing friendly fire incidents during World War II?

Throughout military history, various armed forces have developed distinct brand identities through insignias, logos, and visual elements. These symbols not only identified forces on the battlefield but also built morale, loyalty, and recognition. This poll tests your knowledge of how military organizations have used logo design and brand storytelling to create lasting identities that resonated with both troops and civilians across different eras.

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The US Army Air Forces' switch from a red circle in their roundel to a white star with red border
The British Royal Air Force's addition of yellow outer rings to their roundel
The Soviet Air Force's replacement of the red star with a red star outlined in white
The German Luftwaffe's change from a black cross to the balkenkreuz design