United States deployed a total of 697,000 troops. 143 were killed in action (96 Army soldiers, 22 Marines, 20 airmen 20 and 5 sailors). This means 0.02 % of deployed United States soldiers were killed in action during the Gulf War.
The major concern of scientists who left Nazi Germany for the states before ww2 was that a new Nazi would heavily persecute the Jews ,many of whom held positions in the realm of science