This study contains data on the transfer of arms to 52 developing nations in the period 1945-1968. The Arms Transfers data (Part 1) provide information on donor and recipient, date and site of transfer, quantity, system classification (e.g., aircraft, helicopters, missiles, artilleries, small arms, or naval systems), and date production began and ended. The Weapons Systems data (Part 2) contain detailed coded information about each weapons system.