War can be justified when:
In the event of defending the country or yourself. This is of course after trying to avoid it peacefully.
There have been a few just wars in the past. War can be justified if it is waged in order to defend yourself and your country and faith from invaders. War cannot be justified when it is offensive, instead of defensive. In other words, it is wrong to wage war if no one has attacked you or your country or your faith (eg. imperialist wars cannot be justified).
Not sure what you mean by a fair war but it seem like you are talking about a justified war, which i a war of defense. If your country was invaded you would be justified in using military force to real your attackers
yes
This is an opinion question, there is not a specific answer. Look at the reasons that Germany and Japan went to war, and then you can determine for yourself if they were justified.
It is if the countries reason for war is reasonable
between the two wars which one was more justified
The United States was Not justified in going to war with Mexico Because Polk Provoked it , Robbery Of Texas , and growth of slavery.
War for any reason cannot be justified. War is not accepted by any country. War brings destruction to lives and things. It damages resources. Any problems could be solved through meetings.
War for any reason cannot be justified. War is not accepted by any country. War brings destruction to lives and things. It damages resources. Any problems could be solved through meetings.
Better than a hot war.
Everywhere, but our governments still do it anyway.
The end justifies the means.