It increased federal intervention in the affairs of the independent states
Answer:
The Thorton affair
Explanation:
Rancho Carricitos was a battle in 1846 between the military forces of the United States and Mexico 20 miles west upriver from Zachary Taylor's camp along the Rio(can be found on wikipedia)
They started a fight with France who is also an ally with the United States so yea that's a good reason to blame Germany for WW1