"There is an end to everyone's patience, even ours," steamed Egypt's President Gamal Abdel Nasser. "In the past few years, the Saudis have trained Yemenis to enter Yemen and ambush Egyptians. We left Saudi Arabia alone. But today our policy is different. If aggression is carried out in Yemen, or if there is infiltration into her territory from Saudi Arabia, then we shall strike at the bases of that aggression and occupy them."
Tempting Target. Thus did Nasser, in a breast-beating May Day speech, serve notice last week that the 45-month-old battle for Yemen was entering a crucial new phase....