Answer:
The alliances said they had to fight for each other in war
Explanation:
The alliances system meant that a local conflict could easily result into an intimidating global one. The overall cause of World War was the assassination of Archduke Franz Ferdinand. Nationalism was a great cause of World War one because of countries being greedy and not negotiating.
There could be any number of answers to this question, since you are allowed to choose on the basic of what you studied. I'll suggest a couple of prominent examples here, but you should pick what stood out to you from your studies.
In political philosophy, theories on the origins of governmental authority and the structure of governments, as developed by thinkers like Locke, Montesquieu, Voltaire, and Rousseau have had a huge impact on historical developments that followed, contributing to the American Revolution (esp. Locke and Montesquieu) and the French Revolution (also Voltaire and Rousseau).
In ethics, the categorical imperative approach of Immanuel Kant continues to have strong influence on ethical thinking today. Kant stressed that we need to treat all other rational beings not as means to an end for ourselves, but as ends in themselves, equal to ourselves. He urged that all actions need to be such that they would be sensible if applied universally to all persons.
Answer:
The answer is:
D. US troops, following orders from President Polk, claimed an area of disputed land for the United States which caused an attack by Mexico in retaliation
Explanation:
The major cause of the war was actually the annexation of Texas by the US in 1845. Among tensions, skirmishes and a failed diplomatic mission, president Polk ordered American troops commanded by Gen. Zachary Taylor to occupy the disputed zone between Río Nueces and Río Grande (Río Bravo for Mexicans) in January 1846. Taylor´s men were attacked by Mexican troops in April killing or injuring 16 of them. Polk claimed Mexican soldiers had attacked US troops and "shed American blood upon American soil." He requested a declaration of war. Congress overwhelmingly voted to declare war on Mexico on May 13, 1846.
