[5] The battalion is currently deployed at one of the hottest areas of the frontline in eastern Ukraine, and has been involved in the Luhansk Oblast campaign along the Svatove-Kreminna line since the Kharkiv counter-offensive of 2022.

[6] On 27 February 2022, Ukrainian President Volodymyr Zelenskyy made an announcement declaring the establishment of an international fighting force to assist in defending the sovereignty and independence of Ukraine amidst the Russian invasion.

[5][10] It was reported that the formation of the 2nd Battalion of the International Legion indicated that a fairly large number of foreign soldiers have joined the Ukrainian Armed Forces in the defence against the Russian invasion.

The commander of the battalion, Colonel Ruslan Myroshnychenko, stated in an interview that the insignia depicted a legionnaire warrior who consciously chose to fight for freedom, independence and justice.

[18] As of July 2024, the brigade utilizes the following small arms: In late 2022, the Legion 2nd Battalion were deployed to the northeast of the Donetsk region near Lyman, which is nicknamed 'The Gates of the Donbas'.

Thence, the 2nd Battalion participated in the counteroffensive that led to the recapture of Lyman and the successful advance to reclaim part of western Luhansk Oblast, Ukraine's easternmost region, which was completely occupied by the Russians until December 2022.

[21] While Lyman was recaptured, along with Yampil, Dubrova and Bilohorivka by the end of December, the Russian retreat back into Luhansk region stalled before the occupied cities of Severodonetsk and Lysychansk at the end of the Battle of the Donbas (2022), and thus the Luhansk Oblast campaign began with the Legionnaires of the 2nd Battalion fighting in an outpost sector towards occupied Kreminna in the Serebryansky forest.

[22] Publications by the battalion show the unit in combat in the Serebryansky forest date as far back as 5 June 2023, holding positions after the collapse of Bakhmut in eastern Ukraine.