How to Build World Peace: What If Aliens Came to Invade Earth?

“A world without war”—I’m sure most of us have dreamed of that ideal at least once. But in reality, news about countries clashing or people in conflict never dies down. Why is that?

Humans tend to create “enemies.” Different ideologies, cultures, nations—when differences clash, it often becomes “us vs. them.” So, how can we truly unite the world?

Humans Unite When There’s a Common Enemy

Historically and psychologically, humans have a tendency to band together when faced with a shared enemy.

For example, in times of war, natural disasters, or terrorism, you often see nations or groups that normally clash come together. This is based on the idea “the enemy of my enemy is my friend.” When people feel threatened by something together, they’re more likely to cooperate to overcome it.

In other words, as long as a common “enemy” or “challenge” exists, people can stop fighting among themselves and join forces.

The Movie “Independence Day” Shows Humanity’s Unity

A great example of this idea is the 1996 film “Independence Day”.

In the movie, Earth is suddenly attacked by gigantic alien spaceships, pushing humanity to the brink of extinction. Countries that normally oppose each other—like the U.S., Russia, China, and nations in the Middle East—band together to fight the aliens.

At one point, the U.S. President declares: “Today, we’re fighting for mankind,” and humanity unites beyond borders, religion, and ethnicity. This striking scene shows how a common extraterrestrial threat brings the world together.

Although fictional, if an actual alien invasion occurred, there’s a strong chance that humanity would unite in response.

Do We Aactually Need Aliens to Unite?

That’s not necessarily the case.

The key is recognizing that there is a common enemy—not necessarily actual aliens, but something that gives humanity a reason to cooperate.

If we can view global challenges like climate change, pandemics, nuclear threats, or rogue AI as shared enemies, we could open the path to worldwide cooperation.

Some have joked about staging a fake alien invasion to unite humanity. Though such a hoax would raise huge ethical and safety concerns, the underlying point is clear: humanity needs a shared crisis mindset to come together.

Aliens Teach us “What The Real Enemy is”

The true enemy might not be aliens. Rather, it might be the human tendency to reject differences, to think we alone are right, or to believe conflict solves problems—habits that are real obstacles to peace.

Fictional aliens can serve as a mirror, making us aware of these internal divisions.

That’s why, before any alien threat actually arrives, we must build global unity ourselves—by recognizing and confronting real shared challenges.

ずっとピースらぼ｜Eternal Peace Lab

X

ずっとピースらぼ管理人のわんぞーです。イギリスで平和学を学び、その後国際協力の現場や大学で仕事をしてきました。ずっとピースらぼでは、「優しい」と「易しい」の両方の意味をこめて、「やさしい平和教育」を発信しています。中学生や高校生にもわかりやすい内容を届けることで、いつの日か争いのない社会にできたらいいな、と思っています。 ｜Eternal Peace Lab shares information about easy-to-understand peace education. By delivering content that students can easily grasp, we hope to one day achieve world peace.