 Ukrainian troops are facing 470,000 of Russian army. A stalemate in the US Congress over military aid and a lack of production capacity in Europe is leaving Ukraine with a war critical shortage of artillery ammunition. This was stated by Jack Wattling, a senior researcher at the Royal Research Institute of Great Britain, according to Time. There is already a shortage of ammunition along the entire front which led to the recent withdrawal of Ukrainian troops from the city of Abdiivka, he noted. The expert recalled that the Ukrainian military is facing approximately 470,000 Russian soldiers who are attacking their positions. If Ukraine had enough artillery, these attacks could have been easily repulsed as a few 155 millimeter shells would have killed Russian soldiers as soon as they started advancing from their positions. But Ukraine is having to ration its units to fire only 2000 rounds a day across a 750 mile front. Ukraine feels around 350 artillery pieces so that in many areas of the front Ukraine has no artillery at all. The shortage of guns and shells not only reduces Ukraine's ability to blunt Russian attacks but also makes Ukrainian artillery more vulnerable to Russian Landsat 3M drones and counter-battery fire. Russia has more than 4,000 artillery pieces in Ukraine and is firing around 10,000 rounds a day across the front. The expert added that without enough ammunition the Ukrainian military would have to take up more physical positions on the front to repel Russian attacks with small arms.