There're various reasons of war breaking out. It is their searching for land or power or over resources such as oil, or there is confrontation on religion etc.
Assistance
It is very dangerous to go to the area where war has broken out to help. The men in connection with assistance may have the bulletproof vest on, in order to protect their own body.
When a relief organization goes to help to a war zone, the permission from the influence of both which are warring is required. A relief organization's vehicles, food, etc. may be stolen. People need food, water, protections against the cold, etc. Also, a relief organization distributes food, treats sick person or injured person, and digs a toilet or a well. Safe and clean water is required for people.
After the war
Relief is not made though the war ended. There is danger of the mine devised during war. 119 million mines are still buried by 71 nations in the world.
Removing mines is vicious work, so the person who received training risks his life to remove a mine processes safely. Although many governments are supporting mine removal, it does not decrease easily since new mines set every year.
Challenges
War which started after the end of the cold war attached the new challenge to us. It is various such as a civil war, race confrontation, change of power, and a border dispute, etc. And the case of these many is accompanied by famine or the drought. The government, a relief organization, an international organization, and these all participant to disaster relief have to assistance with the cooperation of each other.
Support which we can do
First of all, it is to have knowledge. Probably, it will be good in collecting newspaper reports about the war in the world, investigating in which area in the world a refugee is, or carrying out fund-raising activities.