<span>a war instigated by a major power that does not itself become involved.</span>
The cause of The Thirty Year War is that the Holy Roman Empire had conflict<span> with the Protestant. </span>France <span>fought </span>Spain<span> and the Holy Roman Empire for Europe Leadership. The effect of the war is that Sweden,</span>France<span> and their allies gained new territory.</span>
Answer:
The answer is be D, disagreement over the Mexican-Texan border.
Explanation:
Mexicans had shot Americans on what they thought was Mexico's side of the border, but the Americans thought the Mexicans had shot them on United States side of the border.
The Mexican American War (1846-1848) greatly affected the United States population and demographics. This is because this war resulted in the US gaining a significant amount of territory. This included states such as California, Arizona, New Mexico, and parts of places like Utah and Colorado.
All the citizens who lived in these territories were now considered part of America. This greatly increased the overall American population. Along with this, the amount of citizens with Mexican ancestry increased greatly as well. These territories would affect the population for years to come due to the fact that gold was discovered in California. This resulted in a huge increase in the amount of Americans moving to this state.