The answer is a.<span> The Modern Day nation of Israel would not exist on the older map. </span><span />
The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria Hungary.
Some people were against the purchase, they thought president jefferson overstepped his constitutional authority by buying it.
This kind of horrific...just a warning. Kids would be given dog tags as a sign of identification. At that time, the nuclear war was taking place. Parents would have their kids wear dog tags so that if they died, they would be able to identify the children's bodies.