Diplomacy

[rmelvin]

The manual 2.4.12 does not cover this clearly. Not in the Script document.

Block Investment Toward This Countries appear also stops Declaration War on those countries.

By using Assignment Limit (if Applicable) = 0, stop diplomatic activities but can still declare war.

Examples
Major Country Germany set Canada to 0. Therefore, Germany cannot influence Canada but still can declare war on Canada.
Major Country Germany set USSR to 0, Germany cannot influence USSR but still can declare war on USSR.

[BillRunacre]

Yes, I think these features may have been added in more recent years.