Either they crossed over the land bridge following their food, or they were moving by means of water across the Bering strait
the answer to your question is a) they had advanced planning and developed effective military methods.
Ukraine (USSR)Holocaust and Nazi -Occupied Europe,1941-1955..Rwandan Genocide,Rwanda..1994..Armenian Genocide..1914..Civil Rights issues USA..1960’s..Along with the Jim Crow Laws..
Answer: the middle colonies
Explanation: