The war in Ukraine is to transform the SHU into NATO-wish systems, including Kal artillery. 155 mm. To the artillery units were the first towed Haubice M-777 (so-called 3 axes, from the form of sevens), then came another towed (mobile) and self-propelled - wheeled and caterpillar. In this way SHU received a mix of the latest technology (Caesar, AHS Krab, PzH2000, M777M2) and Cold War technology (M109, FH70, TRF1), which allowed to supplement losses and get parity, or even advantage, quality, against the quantitative advantage of the aggressor. Preparation of ammunition supplies, from classical to precise, was besides highly important.