Israeli experience in military research, development, test and evaluation before the 1967 War provides some lessons for the United States. The Israelis have effectively used technology transfer and product improvement while also developing their own equipment. Both military and internal capabilities benefited from a strong concern for operational needs. Through incentives, organizational structure, and other mechanisms, Israel has provided examples of rapid, efficient, and flexible response to evolving threats and technological opportunities. Although looking in from the outside makes analysis more hazardous, Israeli practices should be instructive because their end products have been repeatedly tested in the field, comparison of practices in differing contexts may reveal policies that can be adapted for use elsewhere, and such analyses encourage public debate over appropriate processes for achieving national security needs.