Vehicles delivered to Ukraine are most likely M577 [pronounced as part of a military aid package worth EUR 200 million](https://defence24.pl/war-on-Ukraine-report-special-defence24/litwa-transmit-more-service-Ukraine) which was communicated by the Lithuanian president Gitanas Nausėda in January. It included, among others, generating generators, ammunition of various calibres and mentioned M577 command vehicles, which most likely came from the Lithuanian equipment reserve. The image shows at least 3 wagons, which are usually set 2 per semi-trailer, so a minimum of 6 units were most likely delivered.