Poland's Krab self-propelled howitzers are already operating on the front line.
Valerii Zaluzhnyi, Commander-in-Chief of the Ukrainian Armed Forces, said this in a Facebook post, Ukrinform reports.
"Polish Krabs are successfully operating on the front line. [...] The Ukrainian Armed Forces are sincerely grateful to the Polish people for their effective support and assistance. We feel your reliable shoulder!" Zaluzhnyi wrote.