Battle of Leyte-the allied campaign to free the Philippines from Japanese control
Bombing of Tokyo-destroyed Japanese wartime factories and killed civilians
Battle of Okinawa-the last allied victory in the pacific islands
Germany and Ireland were the two countries that sent the most immigrants to America between 1860 and 1900. The immigration was voluntary, not forced by their own governments.
The first alternative is correct (A).
A war is a terroir scenario, where the soldiers go through very difficult times. Many lose friends, see the suffering of people, children, anyway. That way, no matter how psychologically strong a soldier is, his emotional state is shaken.
The Vietnam War itself caused many traumas, as it was a very violent war with many deaths and mutilations. In this way, soldiers who have returned alive have gone through many psychological dramas, alcohol vices, drugs, to the point of needing rehabilitation programs.
A IS YOUR ANSWER .........
Battle of Jutland was the turning of world war I.