This is the best summary I could come up with:

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.

Carl Larson, a US veteran who served in Iraq, spent three months fighting around Ukraine's eastern city of Kharkiv in the summer of 2022.

Studies from in July and September last year by the London-based Royal United Services Institute (RUSI) reached a similar conclusion.

BI's coverage of the International Legion since its inception found that recruits were a mixed bag of qualified veterans, glory-seekers and people trying to give their often chaotic live meaning but totally unsuitable for a military role in a war zone.

Marco Bocchese, assistant professor of international relations at Webster Vienna Private University and an author of the September RUSI study, called the attack a "watershed moment" for many foreign volunteers.

Matteo Pugliese, a researcher at the University of Barcelona who authored the July study, told BI that Ukrainian intelligence coordinates its own branch of foreign volunteers.

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