This is a guide on how to have a minecraft war. First you will need to have a server that has at least two people. You should use a map that has plenty of forest, not one that has allot of desert or is very flat. You should make two bases and each base should have things that would be used in real war like tents, war operation buildings, sand bags and trenches which for all of these I will also make a tutorial. You need to use survival mode, but if you have trouble with the materials you need and the arrows and the swords and etc. then you could use the to many items mod. But only use it before you start the war. A good touch would also to have some skins that blend in with what your doing. You should choose a certain theme, eg castle wars, sword fighting wars. All the items you need is food, swords, bows and arrows, TNT and torches. Have fun.