In the terms of war, No Man's Land is the area located between two opposing forces.
The major similarity is that both the veitnamese troops and north korean troops were back bye communist ideaoligy and china as well
China is the correct answer, hope i helped ☺️
Zimmerman Note
German diplomat wrote a letter to Mexican government asking to attack the US in exchange for lands that Mexico used to own in the US
Russian Revolution
Woodrow Wilson did not agree with Russian alliance with the Allies because Russian was totalitarian
Economic issues
loaned lots of money to Allied Powers; if Central Powers won the US wouldn't be paid back