The Eustachian tube originates in the rear of the nose adjacent to the soft palate, runs a slightly uphill course, and ends in the middle ear space. The middle ear space is the hollowed out portion of the skull bone that contains the hearing apparatus and is covered on one side by the eardrum.
brinkmanship, brinksmanship. the technique or practice in foreign policy of manipulating a dangerous situation to the limits of tolerance or safety in order to secure advantage, especially by creating diplomatic crises.
Under the Eisenhower Doctrine, a Middle Eastern country could request American economic assistance or aid from U.S. military forces if it was being threatened by armed aggression from another state.he military action provisions of the Doctrine were applied in the Lebanon Crisis the following year, when the United States intervened in response to a request by that country's then President Camille Chamoun.