How did the Gulf of Tonkin Resolution affect US involvement in the Vietnam War?
A. It sent the first US troops to Vietnam, thus establishing a precedent.
B. It authorized Operation Rolling Thunder, which led to more troop involvement.
C. It gave the president the ability to send troops without congressional approval.
D. It declared war, making the commitment of US troops necessary

b) brahmans   is nomadic society

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.

a and b!

dfroos means which is a and b