Initial Boer attacks were successful , and although British reinforcements later reversed Change these , the war continued for years with Boer guerrilla warfare , until harsh British counter-measures brought Bringing the Boers to terms .

The situation changed Change constantly , with one side or the other gaining Getting advantage , as participating Participation countries surrendered Surrendering , joined Becoming_a_member and even changed Change sides in the war Hostile_encounter , and as new weapons , tactics , counter-measures and equipment Supply were developed Coming_to_be by both sides .