Answer:
Step-by-step explanation:
1. Economic Gain
Often wars are caused by one country's wish to take control of another country's wealth
2 Territorial Gain
A country might decide that it needs more land, either for living space, agricultural use, or other purposes.
3.Religion
Religious wars can often be tied to other reasons for conflict, such as nationalism or revenge for a perceived historical slight in the past.
4.Nationalism
Nationalism in this context essentially means attempting to prove that your country is superior to another by violent subjugation.