For the purpose of any action which may be brought within the United States, its Territories or possessions, or the Commonwealth of Puerto Rico by or against the Bank in accordance with the agreement, the Bank shall be deemed to be an inhabitant of the Federal judicial district in which its principal office in the United States is located, and any such action at law or in equity to which the Bank shall be a party shall be deemed to arise under the laws of the United States, and the district courts of the United States shall have original jurisdiction of any such action. When the Bank is a defendant in any such action, it may, at any time before the trial thereof, remove such action from a State court into the district court of the United States for the proper district by following the procedure for removal of causes otherwise provided by law.