Target practice with Airsoft guns at a camp in Borodino.

Kids at a public school in Dmitrov compete to see how quickly they can don gas masks.

Teens box in the after school in the Diveevo Public School gymnasium.

Teens after a drill where they practice quickly assembling and loading rifles in Borodino. The weapons are real, but can’t fire.

Teens take an afternoon off at the lake.

The Historical-War Camp in Borodino offers reenactments from different wars. Here a group of students are dressed in Soviet uniforms from WWII.

Campers play tug-of-war in Borodino.

Campers in their tent at Orthodox Warrior camp in Diveevo.

Students practice with Airsoft guns in Borodino.

Heroes of Russian history (including President Vladimir Putin) adorn a school wall in Diveevo.

A 17-year-old student takes a breather after a drill. He’s preparing for a fake war at the Orthodox Warrior camp in Diveevo.

A fake grenade is launched as campers practice with Airsoft guns.

Campers ride horses at war camp in Borodino.

A teenager studies a map during a 12-hour drill in the forests around Diveevo.

Kids watch war movies at summer camp in Borodino.

A student participating in tactical training in Diveevo.