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.
Ann C. Richard, the deputy Secretary of State in charge of immigration, said the United States had resettled nearly 70,000 refugees from nearly 70 countries around the world last year, and is reviewing 9,000 to 10,000 recent Syrian referrals from the United Nations high commissioner on refugees.