- Ukraine's International Legion was born in 2022, a home for foreigners eager to fight Russia.
- Ukraine said 20,000 signed up, though experts said 4,000 was a more realistic peak figure.
- In 2024, the legion is depleted by years of harsh reality and casualty rates extreme even for Ukraine.
Three days after Russia's full-scale invasion of Ukraine in 2022, President Volodymyr Zelenskyy issued a clarion call for "friends of peace and democracy" to join the fight from abroad.