Psychology

Common enemy

A shared opponent pulls people together, so an ad that names something to fight against gives its audience a side to join.

1916–2025Updated 26 October 2026

2020s

2010s

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1990s

1980s

1970s

1950s

1940s

1910s

Common enemy: where it comes from

People pull together when they face a shared opponent, and a brand that names one gives its audience a side to take.

In ads it shows up as a rival cast as the villain, a stand against an injustice, or a campaign that asks people to join a fight against something.