vassal

Vietnam was a French colony, a Chinese vassal and for 20 years, the proxy battlefield in America's bloody struggle to stop China spreading communism across South East Asia.

But in private, GOP representatives and senators speak openly about Trump’s treatment of their caucus not as a check or equal partner, but as a vassal of his presidency.

"It's not in Europe's interest, and it's not in America's interest, for Europe to be a permanent security vassal of the United States," Vance said.

"His task is to seize all of Ukraine, change its legal status, and change the president and government. He wants to destroy our political system and to make Ukraine his vassal state."

According to the polling expert, Mr Lee, "a growing portion of the public now believes China wants to turn South Korea into some kind of vassal state".