The US produced the planes! The US produced the aircraft carriers! The US produced the bombs! The US produced the Browning .50 caliber machinegun bullets (by the billions)! The US destroyed the enemy subs!
The renewal of unrestricted German submarine warfare had devastating effects on shipping in 1917. In terms of tonnage, the Germans sank 540,000 tons in February 1917, 578,000 in March and 874,000 tons in April. Anti-submarine measures by the Allies, however, began to reduce this calamity.
You don't
weerwerwqee
dont be stupid
The purpose of a safety device is to reduce the danger of injury.
Buildings can be placed on giant springs that can move slightly with the earth below them, they do not eliminate the danger of an earthquake, but they reduce it.
Stalin hopes that by the Allies invading Europe, Germany would have to fight on two fronts. This would split the German forces, and reduce the pressure on the Russian/Germany front.
Habitat destruction and deforestation reduce their areas of operation.
To reduce danger to life
by building dams
To reduce the chance of being hit by a German shell
Yes. Being happy has been documented to reduce the risk of all disease.