The campaign plan seeks victory without engaging the major American armies in open battle. Too much time has already gone into conquering North America when objectives elsewhere offered a better route to success. A siege continues because time currently favours the besieger. The British armies still matter while stationary because the Americans must account for their presence. This is game-campaign logic rather than a claim about a real event, showing how credible threats can fix strong concentrations while other forces pursue more useful objectives.
Notable Point · 38:54-50:58
Bypassing major armies while fixed threats consume attention
A prolonged siege and stationary threats keep the main American armies occupied while other forces pursue the campaign's wider objectives.