Fivefold.

This is coolbert:

It is not only the Europeans and NATO that must fear the wrath of President Trump of the USA. Beware the Don.

So must the leadership of the Republic of Korea [ROK]. South Korea. Thanks to American and Asian sources.

"If Trump wins in 2020, he will pull US troops out of South Korea"

"Officials in Seoul laughed at his request for $5 billion to keep army [USA] presence"

"According to a report on July 30 from a South Korean newspaper, Washington has requested that the government in Seoul pay $5 billion next year for the continued presence of its armed forces [USA] on South Korean soil. This would be more than a fivefold increase from 2019, when Seoul paid $879 million."

A threat or a negotiating starting point?

See previous blog entry with emphasis on item # 2 the topic NATO alliance pay your fair share:

https://militaryanalysis.blogspot.com/2019/11/annegret.html

coolbert.