A domestic corporation is one organized or created in the United States, including only the States (and during the periods when not States, the Territories of Alaska and Hawaii), and the District of Columbia, or under the law of the United States or of any State or Territory. A foreign corporation is one which is not domestic. A domestic corporation is a resident corporation even though it does no business and owns no property in the United States. A foreign corporation engaged in trade or business within the United States is referred to in the regulations in this chapter as a resident foreign corporation, and a foreign corporation not engaged in trade or business within the United States, as a nonresident foreign corporation. A partnership engaged in trade or business within the United States is referred to in the regulations in this chapter as a resident partnership, and a partnership not engaged in trade or business within the United States, as a nonresident partnership. Whether a partnership is to be regarded as resident or nonresident is not determined by the nationality or residence of its members or by the place in which it was created or organized.