The soldiers from the different war fronts will lose their lives causing misery and pain to the families and the involved nations. People from the war zones have been killed in their homes, in markets, and on the roads. Karl Marx idea would suggest that wars lead to adverse effects on the economic status of a country that is under wars.
The effects of war are not confined to physical pain and suffering, but can also be psychological, emotional, and medical impacts. War has caused many issues and has had a rather large effect on people and civilizations throughout history, while mostly negative and in some cases is found to have positive influence on society.