Answer:
The attacks started immediately after the arrival of the settlers.
Step-by-step explanation:
The phrase tells us that the attack of the native Americans were started just after when the settlers reached the Jamestown because the lands belongs to native Americans. The settlers experience the problems of drought, starvation due to lack of food, the threat of attack from the native Americans tribes, and disease. The great damage occur to the settlers was the disease that killed more than half of the population of settlers so we can say that the attack on the settlers started immediately after their arrival.