Nausicaä of the Valley of the Wind is a 1984 Japanese animated film based on its manga (Japanese comic).

The story talks about Nausicaä, the young princess of the Valley of the Wind. She becomes embroiled in a struggle with Tolmekia, a kingdom that tries to use an ancient weapon to eradicate a jungle of mutant giant insects.

I like animated old films dating from the 90s and I found the plot of this film very intriguing so I had to watch it.

(Summary)

A millennium has passed since the catastrophic nuclear war named the "Seven Days of Fire," which destroyed nearly all life on Earth. Humanity now lives in a constant struggle against the treacherous jungle, Filled with poisonous spores and enormous insects, that has evolved in response to the destruction caused by mankind, the jungle threatens to swallow the remnants of the human race.

Away from the jungle exists a peaceful farming kingdom known as the "Valley of the Wind.” The Valley's charismatic young princess, Nausicaä, finds her tranquil kingdom disturbed when an airship from the kingdom of Tolmekia crashes violently in the Valley. After Nausicaä and the citizens of the Valley find a sinister pulsating object in the wreckage, the Valley is suddenly invaded by the Tolmekian military, who intend to revive a dangerous weapon from the Seven Days of Fire. Now Nausicaä must fight to stop the Tolmekians from plunging the Earth into a cataclysm which humanity could never survive, while also protecting the Valley from the encroaching forces of the toxic jungle.

(Moral)

the lesson, this movie and princess Nausicaa teaches is that, we can’t dominate nature—in the film, each attempt leads to a stampede by the Ohmu that decimates the populace and spreads the Sea even further. The violence we do in our name does violence to ourselves, whether we know it or not. But we can learn to integrate ourselves into nature, if we do so peacefully and with respect.

(Important Message)

The message it conveys has a great meaning. Aside from it showing the life after a catastrophic nuclear war, a future many of us fear. The movie shows that we’ll never destroy the Earth. We only destroy ourselves when we try. When Nausicaa delves underneath the verdant (though polluted) surface, she discovers clear water and unmarred soil. The world is slowly regenerating itself after so much manmade damage. Even after the Giant Warriors’ onslaught, even after the violence we witness in the movie, nature is rebuilding and fortifying itself. It’ll go on with or without people.