child soilders are used for the army for many reasons, mostly the main reason is because children are easy to Kidnapp, they can fall under the commands of anyone very quickly. As an adult it is very hard cause adults will respond or fight for their lives, it is also said that children are involved in conflict because the other side of the militia is mainly to strong to handle. So the use of children can be easy. The other reasons for children in conflicts are still being asked.
World War I - because it brought in the whole of the British and German Empires, and involved conflicts in Africa, South America etc.
in the Korean war
Not in conflicts of mankind but it is involved in the spiritual conflict between what one wants to do and what one should do at the light of Confucian ethics.
He got involved in no wars or any conflict like that.
No governments are involved in fairtrade, it is a worldwide movement of people.
Being where the armistices to the Conflicts are drafted.
That depends the degree to which it needs to be estimated. It may be estimated to 100, 80, or indeed 79 depending on the scale of the sum involved.
The defense of Hong Kong
Atleast ten
I have not gotten into any conflicts in the Middle East and therefore there are no results to be had. If the question is asking about the results of the United States' involvement in Middle Eastern conflicts, please see the Related Question below.
Children were not involved as perpetrators, if that is what you mean.
Contain communism.