There is many reason, one way they could've been worried about is if the
new settlers would make war or take their land and food.
Another way is that they could've cause the Mexican to come of their land.
Hope it helped
Don Juan Bautista de Anza traveled to California to make peace with the Indians to help salvage the colony. Don Juan Bautista de Anza was successful in putting down rebellious Indians and forged a peace that would last 100 years. Over several years Anza led colonists to California and successfully dealt with Indian problems. Anza was greatly respected by the Viceroy and the King.
Although The Battle of
Hampton Roads was not won by either side, the importance it had, was
that it was the first battle of armored ships in history, and also
included a development of notable war technologies: such as the rotating
turret of the USS Monitor. <span>The great battle between these battleships lasted for hours, and none was able to destroy the other; finally the USS Monitor made the ironclad Virginia retreat, unable to do real damage. <span>This
initiated a new form of maritime war, using ironclads, that soon
would be much more advanced, like the ironclads or destroyers ships of the first
world war.</span></span>
I think none of the above would be your answer.
