Artillery bombarded Phnom-Penh last week, inflicting the most serious damage on the capital in nearly four years of war. Taking advantage of the dry season, Khmer Rouge insurgents moved their forces to within 4½ miles of the city and shelled it over a period of five days with captured U.S.-made 105-mm. howitzers. During the attacks, at least 1,200 of the 25-lb. shells rained upon the refugee-packed capital, demolishing flimsy makeshift huts and killing more than 100 civilians.
The howitzer bombardment followed five weeks of almost daily shellings by Soviet-made 122-mm. rockets less...