The most popular form would be Catholic with 1.285 billion members of Catholic Churches in the United States
The Tet Offensive was considered a turning point in the war because in the Tet Offensive, the VietCong launched a massive counterattack all over allied posts, starting from the North down. It was all planned out and launched within minutes of each other. The U.S. Embassy was infiltrated for about 1-2 days, and when the media reported it and captured images of American soldiers dying, many American people knew that the war was far from over and demanded U.S. troops to withdraw from the war. The media leakage made the U.S. Government look bad because they were lying to the people about the war. After that, the U.S. makes a temporary deal with the VietCong, leader was Ho Chi Minh, and the U.S. slowly withdraws. After the U.S. fully withdrew, the North resumed their attacks, and the South couldn't defend themselves without a strong leader, because Ngo Dinh Diem (leader of South Vietnam) was assassinated and the U.S. were no longer in the war. South Vietnam fell to Communism on April 30, 1975.
The major impact of Western imperialism on Japan came when Admiral Perry "opened" Japan to trade in 1854. This action on Perry's part shocked Japan. Japan's leaders had believed that their country was superior to all others until they were shown otherwise by the technology that Perry brought to bear on them.
Hope this answers your question ^^
From what it sounds like, "concealed propaganda", would be propaganda that is subtle, trying to slowly edge under the skin of a reader, in order to make it seem like it fits in normal life. They sound familiar to news you would hear otherwise. "Revealed propaganda", would seem like it's very blatant propaganda, like what you see in politics, with almost every ad or poster smearing one thing, person, opinion, etc. Revealed propaganda tries desperately to make people join it's cause and hate the other thing. Hope this helped!
-Trumpular :)