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. ...