To convince north vietnam to stop reinforcing the vietcong, president johnson ordered operation rolling thunder, which:

began a sustained bombing campaign.
put more american troops on the ground.
involved search ­and­ destroy missions to hunt down guerrillas.
increased the number of american advisers in south vietnam.

The correct answer is B) began a sustained bombing campaign.

To convince North Vietnam to stop reinforcing the Vietcong, President Johnson ordered Operation Rolling Thunder, which began a sustained bombing campaign.

Things had turned complex in the Vietnam War when United States President Lyndon B. Johnson ordered Operation Rolling Thunder. This operation was to continually bombard North Vietnam lands from March 1965 to November 1968. In the operation, the US Air Force was supported by the South Vietnam Air Force.

6 or 2

explanation:

hope this you

but i think its 6

england is crowded cold and polluted while north america was like the opposite