Answer:
An important element of the mandate was that although the ruler had been given great power he also had a moral obligation to use it for the good of his people, if he did not then his state would suffer terrible disasters and he would lose the right to govern.
Several reasons.
Saw this crusade as a blessing from God.
Christians would stop fighting themselves.
Christians that would fight would go to heaven or be right with God.
To take back the holy lands, from the Muslims would be a righteous cause.
A key factor that pushed Mexicans to emigrate was not being able to support themselves at home, politics also affected them.
Because Francis was assassinated by a serbian, Austria-Hungary declared war on Serbia, which triggered the domino effect of the central powers declaring war on everyone. Causing World War 1.
He caused ww1