or customs of war," and the extermination and                         enslavement of civilians among its examples of wartime                         criminal conduct.                           52. Rostow at 169-70.                          53. United Nations Charter, articles 2(4) and 51. See also                         Gardam at 403-11; Motala at 3.                          54. U.N. Charter art. 51.                          55. Motala at 4.                          56. Id.                          57. Id.                          58. Motala at 11.                          59. Johnson at 149; Bederman at 29. The tradition of                         dividing just war theory into two distinct analytical                         categories has its roots in the work of Grotius, Aquinas,                         Augustine, and Cicero.                          60. Johnson at 149                          61. Johnson at 149                          62. Johnson at 149.                          63. Id.                          64. Id.                          65. Aquinas, Summa Theologicae, II, II, Q. 40, Art. 1.                          66. Johnson at 158                          67. Johnson at 158.                          68. U.N. Charter art. 51.                          69. Johnson at 158. Johnson compares the concept of                         "right authority" with the modern concept of sovereignty                         and argues that the just war notion of authority basically                         mirrors the modern notion of sovereignty. Id.                          70. Bederman at 31-32; Aquinas, Summa Theologicae,                         II, II, Q. 40, Art.1..                          71. Aquinas, Summa Theologicae, II, II, Q. 40, Art. 1.                                                    ...