I'm not sure 100% what exactly this question is asking, but I know World War 1 was the first war to include Gas masks and Chemical warfare, so that is more than likely the answer.
In post-war Japan, the United States implemented a policy of "rebuilding the nation" The Allies had learned their lesson after WWI, when they were too harsh on the losers.
The correct answer is A. Organizing Roman history into 3 main eras
Explanation:
Periodization in history refers to the process of studying and categorizing events of the past in to block of time. This process is aimed at facilitating the analysis of historical events and understanding the causes of specific historical processes. Additionally, periodization is useful as blocks of time are organized according to relatively common characteristics. Considering periodization is applied when categorizing or organizing events of the past, it can be applied to Roman history which result could be 3 main eras with common historical features. Thus, periodization is useful in the case of organizing Roman History.
Answer:
<h2>A. Communism was not contained in Vietnam.</h2>
Explanation:
The US withdrew its forces from Vietnam in 1973. By 1975, Saigon, the capital of South Vietnam, fell to the North Vietnamese communist forces. South Vietnam unconditionally surrendered to North Vietnam on April 30, 1975. All of Vietnam became united under communist control.
There were also successful communist invasions of Laos and Cambodia also
Answer:coastal plains
Explanation:I had that question