International Legion of Territorial Defense of Ukraine

https://en.wikipedia.org/wiki/International_Legion_of_Territorial_Defense_of_Ukraine

At present Canada, Latvia, United Kingdom, Denmark and the Netherlands more or less approve legality of their citizens joining it, whereas Australia offers no guarantees for legality./HGL

PS, 7.III.2022 History with Hilbert stated that both Australia and Denmark and three more say it would be illegal. What is the Ukrainian Foreign Legion?