1. Short title This Act may be cited as the Expatriate Terrorist Act . 2. Loss of nationality due to support of terrorism Section 349(a) of the Immigration and Nationality Act ( 8 U.S.C. 1481(a) ) is amended to read as follows: (a) In general A person who is a national of the United States whether by birth or naturalization, shall lose his or her nationality by voluntarily performing any of the following acts with the intention of relinquishing United States nationality: (1) Obtaining naturalization in a foreign state upon his or her own application or upon an application filed by a duly authorized agent, after having attained 18 years of age. (2) Taking an oath or making an affirmation or other formal declaration of allegiance to a foreign state, a political subdivision thereof, or a foreign terrorist organization designated under section 219, after having attained 18 years of age. (3) Entering, or serving in, the armed forces of a foreign state or a foreign terrorist organization designated under section 219 if— (A) such armed forces are engaged in hostilities against the United States; or (B) such persons serve as a commissioned or noncommissioned officer. (4) Becoming a member of, or providing training or material assistance to, any foreign terrorist organization designated under section 219. (5) Accepting, serving in, or performing the duties of any office, post, or employment under the government of a foreign state, a political subdivision thereof, or a foreign terrorist organization designated under section 219 if— (A) the person knowingly has or acquires the nationality of such foreign state