The definition of preemptive is  something done in anticipation of another action or done to prevent something from happening. When the military takes action against forces they believe intend to do harm to them, this is an example of a preemptive strike.
Newsfront. Just 1 percent of illegal immigrants living in the United States last year were deported-a dramatic 25 percent drop from the previous year-a change the Obama Administration says is on purpose due to a shift in focus. illegal,immigrants,deported,drop. 400.
The Act set no limits on immigration from Latin American countries. In the 10 years following 1900, about 200,000 Italians immigrated annually. With the imposition of the 1924 quota, 4,000 per year were allowed. By contrast, the annual quota for Germany after the passage of the Act was over 57,000.