It is possible to have a wide-ranging general collection with one or two items illustrating all the varying aspects of the War; with this you will be able to give an interesting display to local philatelic societies.
But you may soon begin to wonder whether, for instance, a couple of prisoner of war covers are enough; you may feel you should have an example from each country or even from each camp where prisoners were held. Then perhaps you have two or three Army or Field Post Office marks; what about looking for one of each number? But there are over 50 FPO numbers. You may well feel that a general collection is no longer possible. Perhaps it is time to limit yourself to one particular field.
These are some of the possibilities (articles on them may be found in the Anglo-Boer War Philatelist):