Ignoble Humans And Their Savage Wars?: Forever Savage? Forever Cruel? Forever Stubborn? Forever Selfish?

In a brief 5 year period from 2022 to 2026, there have been three major savage wars waged by countries led by ignoble human and despotic national leaders.

These savage wars caused horrendous losses to all the affected people and countries.

And they have also caused tens of thousands to hundreds of thousands of deaths and hundreds of billions of dollars of devastation.

What are they?

Could they have been prevented?