When combining belief functions by conjunctive rules of combination, conflicting belief masses often appear. Sum of all multiples of conflicting belief masses is often considered as conflict of belief functions; it contains internal conflict (inside belief functions) and external conflict (between belief functions. In this working seminar we will observe and investigate the case of conflicting belief functions when the sum of all multiples of conflicting belief masses is zero, i.e., when there are no disjoint focal elements.