It occurred when Adams offended French negotiators
The answers are A B and D
The one that describes Johnson's vietnam war strategy is : Committing large amount of American Troops to the fight and massive bombing
By doing this, Jhonson expect to capture a target area as fast as possible while eliminating the chance of lost in numbers.
hope this helps
first america was not intrested in the war but later had their hand forced cause on allie need tem