German Defense Minister Boris Pistorius inadvertently disclosed classified information about the delivery of RCH 155 self-propelled howitzers to Kiev, the Bild newspaper reported. The publication noted that the German authorities had not previously confirmed supplying Ukraine with the weapons systems. During a visit to the KNDS plant in Kassel, Pistorius said that the "wheeled howitzer has proven itself in Ukraine." "About two years ago, the first wheeled howitzer sent to Ukraine stood right where you are standing now," he said. The RCH 155 is regarded as one of the most advanced weapons systems of its kind.