Whenever possible. From the flowcharts:
British NP flowchart wrote:
Select all spaces/WI with Rebel Forts and/or Rebel cubes where Royalist Force Level + modiers exceeds Rebel Force Level + modiers, first where most British. Use Common Cause to increase British Force Level.
Patriot NP flowchart wrote:
Select all spaces where the Rebel Force Level (if possible including French) + modiers exceeds the British Force Level + modifiers, first with Washington, then in highest Pop, then where most Villages, then random.
French NP flowchart wrote:
Select all spaces where Rebel Force Level (including Continentals if possible) + modifiers exceeds Royalist Force Level + modifiers:
(Amusing bug in the PDF reader in my phone: for some reason, it refuses to copy the string "fi" when it is in italics. Thus "first" and "modifiers" copy OK, but "first" and "modifiers" become "rst" and "modiers" respectively )