The visits came ahead of Kyiv‘s first Defence Industries Forum, where Ukrainian officials were set to meet representatives from over 160 defence firms and 26 countries.
Ukraine has repeatedly asked for more Western weapons, including longer-range missiles, to help break through Russian positions and launch strikes deep within Russian-controlled territory.
Rishi Sunak is reshuffling his top team, with Grant Shapps succeeding Ben Wallace as defence secretary and Claire Coutinho entering cabinet as energy secretary.
Mr Wallace, who revealed his intention to quit back in July, said in his resignation letter: “After much reflection, I have taken the decision to ask that I be allowed to step down. I won my seat in 2005 and after so many years it is time for me to invest in the parts of life that I have neglected, and to explore new opportunities.”