Some exemptions from permanent residency exist for certain qualifying naturalization applicants. For example, since 1940, an immigrant who honorably served in the U.S. military during a designated period of hostility may naturalize without having first been a permanent resident. During peace time, a foreigner's honorable military service reduces the residency requirement to one year. A legal but not permanent immigrant who successfully completed the Military Accessions Vital to National Interest program may naturalize without first having been a permanent resident. Similarly, an immigrant who has made extraordinary contributions, such as scientists or Olympic athletes, can be exempted from residency as well as the physical presence requirement and prohibitions for support of totalitarianism and or communism.