Select the target AI and your nation from the drop-down list in the calculator.
Differences in Ideology (described further down) are displayed to the right of the selected nations alongside the alignment of the AI, if any. Differences are converted to an opinion modifier where nations more ideologically aligned have a greater effect for their actions. This means negative actions are more influential also.
Modifiers are the base value that is multiplied and is dependent on numerous factors (described further below) The Total Opinion dictates what ways you are able to interact with and control the various AIs.
A force amounting to ideological support will break away from the AI's military in an attempt to take over. End ideology will be that of the supporting nation's choice. In cases of independence wars the force amount will be compared opinions of overlord and supporter. The new government is automatically aligned.
Modifiers are factors which affect the opinion that an AI target has of the player nation. Blue being Diplomatic, Gold economic, Red military, Green geographical, and Purple being historical factors. Most factors expire after a set amount of years.
To use, select the check-boxes neighboring each factor if they are true.
If the displayed AI opinion reaches a certain point options will be highlighted as green. A Post is required to make a request. AIs cannot be aligned by players supporting their independence.
AI Opinion that dips below 110 will be automatically unaligned.