German Defense Minister Boris Pistorius vowed Tuesday to keep supporting Ukraine’s efforts to win its war against Russia, pledging further military aid worth $1.4 billion.

The new support is to include further Iris-T SLM antiaircraft missile systems as well as antitank mines and 155-millimeter artillery shells, German news agency DPA reported.

“We are talking about 20,000 additional shells,” Pistorius said at a joint news conference with his Ukrainian counterpart, Rustem Umerov, in Kyiv, according to DPA.