Lend-Lease is certainly in the news given the ongoing shipment of weapons from NATO countries into the Ukraine. This isn't the first time this was done. Author Vladimir Kotelnikov's Lend-Lease And Soviet Aviation In The Second World War offers a superb look into the delivering, modifying, and employing in combat of the various Allied aircraft shipped to the Soviet Union.
Given current events it is hard to find a more timely look at how much effort is involved in arming another country with war material at the same time it is actually engaged in conventional warfare against a peer