they did it to take over the country they were fighting against.
Most countries go to war for two reasons. The two reasons why countries go to war are because of power and money.
Survival.
States do not go to war. Countries go to war because they do not agree on things.
because of economic treatys other countries were forced to after Germany used the assasination of archduke ferdinad as a reson to go to war.
Having McDonald's has nothing to do with countries going to war with each other. The causes of war are much deeper than whether or not countries have McDonald's.
they wanted to get more attention and steal money from other countries
Usually, yes, always, no. It is a common action of countries to spend massive amounts of money during times of war, as well as taking loans from foreign countries. Once the war is over, the debt of the country is huge, and the owe a lot of money to foreign nations. I wouldn't say that countries go into a "depression" but they definitely suffer pecuniary difficulties after a war.
In war -to the victors go the spoils !!.
Egypt and other countries declared war against Israel, which was made mostly of Jews, so, YES, but Israel did not declare war on them.
Countries will go to war if and when they believe they have a cause for war.Some countries have a policy of avoiding war, and will only fight in their own defence; while others will agressively use violence on a regular basis. Usually these agressors will try to justify their agression by claiming it to be self defence. Some other countries will fight in defense of other nations if they believe the cause is just.
Russia.USA.Germany.Israel.China. I vote that USA and Germany will win.
The first two countries to go into WW2 were Nazi Germany and Poland prior to the invasion of Poland by Nazi Germany.