What role did the ""domino theory"" play in the start of the korean war?

The actions and decisions during the cold war were the consequences of this theory.

Explanation:

Domino theory suggests fear and says that if a single country can attack and seize another country, then it has the potential to attack more countries.

For the USA: Since NK was communist and supported by Joseph Stalin of Soviet. America got worried that NK's win over South may help Soviet in spreading its communist ideology.

For China: When NK was invaded with the help of USA. China got worried that this victory may lead the US army towards them.

i believe the answer is:

-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.