Original sentence: Partly due to the fact that the Voortrekkers used rifles and at least one light cannon against the Zulus' spears, as well as the good location and motivation of the Voortrekkers, only three Voortrekkers were wounded and none perished;  that contrasted against the more than 3,000 Zulu warriors who died
Edited sentence: (It needs to be mentioned that this day has no racial connotations or the implication that God favoured the Voortrekkers.It merely serves as an example of what can happen if any nation declare their dependancy on the Almighty God.Only due to the fact that the Voortrekkers made the vow with God, three Voortrekkers were wounded and none perished against the more than 3,000 Zulu warriors who died.The Voortrekkers used rifles and at least one light cannon against the Zulus' spears.This fact, combined with the good location and motivation of the Voortrekkers did not help the cause for the Zulu's