Quote:
The ESA [Epigraphic South Arabian] inscriptions of all periods contain numerous references to wars. But in the archaic period, down to around the beginning of the Christian era, these references afford us no insights into methods of warfare. Even the great Sirwah inscription R.3945 of Kariba’il Watar, recording victories on a scale which makes him a Napoleon of South Arabia, confines itself to saying that he “smote” (mhd) such-and-such a folk, and then goes on to list enemy casualties and detail the measures taken after the victory.
In the second and third centuries A.D., however, it became customary in the Sabaic-speaking area for all persons of distinction to give thanks for their successes – both military and otherwise – by dedicating a votive statuette, usually to the national deity ’lmqh in his shrine of Awa (now called Mahram Bilqis) a little way from Marib, or occasionally elsewhere to a local deity. These votive offerings were mounted on stone plinths containing an epigraphic record of the dedication and its motives, sometimes in general terms but often in great detail. It is to these texts that we owe our knowledge of the modes of warfare employed. p. 1
The above illustrates the problems with determining the methods of war in the time of EB. Although this is an older text and I’m not yet up to date on archaeology in Yemen it would appear that later periods are the best we have to go on.