A scarf ring has several advatages, no doubt exploited at the time, better depression, so they can't get that close, better elevation, especially in built up areas. Definite disadvantage only the botton half is armour plated.:-D A lot of the history of the Palastine Mandate is of street fighting and ambush, not to mention that old favourite, the roadside IEOD. Not a lot changes. The mandate ran formally from 1922 to 1948.