Why do some historians criticize the United States decision to send combat troops to Vietnam after the Gulf of Tonkin incident?

what are the options ?

he sent troops to protect the students as they entered the school.

on november 6 and 7, 1917 (or october 24 and 25 on the julian calendar, which is why the event is often referred to as the october revolution), leftist revolutionaries led by bolshevik party leader vladimir lenin launched a nearly bloodless coup d'état against the duma's provisional government.

first representative government in british america called virginia assembly