Good climate and ample food supply
The environment of the west coast was attractive for settlement because it had great weather and plentiful natural resources. The climate of the west coast was mild and it had dependable food that attracted the Native Americans
Colonial era: british
WW1: American
WW2: British (America for the atom bomb... but thats just one weapon. and they massed produced everything else really)
after that: AMERICA!!
Answer:
GOD / GOLD / GLORY (and territory)
Explanation:
Conquistadors hopes to gain gold and natural resources they lacked at home, to convert the "savages (aka natives)" to Christianity and to gain glory/recognition for their explorations