I believe that a full-out war should only take place when all other options have been tried and failed. Or, as in the case of World War II, when we receive a direct threat. During World War II, the U.S. wished to remain somewhat neutral, but they were pulled into the war after Pearl Harbor was bombed. There are other things that can be tried first, such as trade embargoes and targeted missile strikes. But in very rare circumstances, it does seem that war is the only way to resolve conflicts.
War is an undesirable outcome that is sometimes necessary to solve disputes. If all diplomatic and economic actions have failed in a serious international dispute, war may be necessary. War is the final option for nations that cannot be swayed through non-violent means. Unfortunately, some leaders only understand force and are not willing to negotiate settlements in a peaceful manner.
War should be used as an option when trying to solve international disputes, but as a last resort. This is because talks and bargaining do not hurt anyone and they bring more people to the table and help improve relations. War often results in people dying, both military and civilian.
War is far too quickly launched today since the vast majority of people in the US are completely removed from the realities of the situation and how awful it can get. Still, there are serious cases such as genocide that really do merit military action, when no other option is possible.
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War only leads to bloodshed their can be various ways to solve these disputes giving each others rights some meetings can also be held between great leaders of each countries which can anyway lead to a solution because no one gets up until they come up with a solution ,on the contrary war leads to human extinction
Countries should agree on a set of steps to be taken to address international disputes, with the first step being the election of an unbiased arbiter. Our world needs to move away from relying on war as a ready solution to problems. Today's weapons are far too sophisticated and lethal. War in today's world has a whole new meaning from what it was a hundred years ago. War should be the absolute last resort, when all else has failed.