billion of military assistance given by the us to ukraine over the last year. interestingly, i've been speaking to a former commander of the us army in europe whose in kyiv, and he said what the ukrainians are desperate for is air defence systems. mobile weaponry that they can bring down drones and helicopters with, so if this assistance is what it says it is, then that is very significant indeed. but getting it there remains a problem, this general told me that it's becoming increasingly difficult to deliver, russia is moving to block ground routes particularly from poland, and the us can'tjustify military aircraft into ukraine at the moment. aircraft into ukraine at the moment-— aircraft into ukraine at the moment. . ., , g ., �* ~ moment. that was jane o'brien. witness history's _ moment. that was jane o'brien. witness history's farhana - witness history's farha na haider witness history's farhana haider is at the museum in manchester looking back at five extraordinary campaigns