Apparently if you are fighting an Immortal runaway (from another continent) for some decades, the best way to force a favorable peace deal even though he outnumbers you two to one and isn't really threatened... is to get to Stealth ASAP.
But they don't like it at all if you suddenly take some of their core cities, and will switch to a peace deal that demands back those cities.
So in that case, if you didn't prepare hard enough and the invasion is faltering due to lack of reinforcements and some pretty horrendous casualty rates (invading deep-rooted runaway with SBs is like that), start paying off everyone else to bring him into a Three Front War. But what happens if all of them are too afraid? In that case, one must hold the line at all costs... make sure that you make that runaway bleed really hard, make him pay with your Stealth stack, give him the occasional nuke and it'd be really cheap to pay off anyone else to go to war with him because he has a subpar military now.
Immortal Runaways will also have several staging points for amphibious invasions - its mainly their coastal cities facing your continent, and they will form them up quickly with touch & go in mind. Disrupting them - requiring nuclear submarines - will reap huge rewards such as +1 sight +1 range Logistics Hunter Killer Submarines, also you might even eliminate part of their nuclear arsenals right there and then. But don't be surprised if runaway still wants you to surrender unconditionally - they are also likely rolling in 500+ gpt and will rushbuy everything they can to replenish their losses its literally mind-boggling, and they will switch staging grounds among all their many, many cities/former puppets if one has been busted but its really easy to tell provided one pays attention with your subs constantly on the move. This poster thinks it would be best if they actually built that fleet out in open waters somewhere else, preferably under the cover of their SB umbrella and have it be really huge. But I digress.
But they don't like it at all if you suddenly take some of their core cities, and will switch to a peace deal that demands back those cities.
So in that case, if you didn't prepare hard enough and the invasion is faltering due to lack of reinforcements and some pretty horrendous casualty rates (invading deep-rooted runaway with SBs is like that), start paying off everyone else to bring him into a Three Front War. But what happens if all of them are too afraid? In that case, one must hold the line at all costs... make sure that you make that runaway bleed really hard, make him pay with your Stealth stack, give him the occasional nuke and it'd be really cheap to pay off anyone else to go to war with him because he has a subpar military now.
Immortal Runaways will also have several staging points for amphibious invasions - its mainly their coastal cities facing your continent, and they will form them up quickly with touch & go in mind. Disrupting them - requiring nuclear submarines - will reap huge rewards such as +1 sight +1 range Logistics Hunter Killer Submarines, also you might even eliminate part of their nuclear arsenals right there and then. But don't be surprised if runaway still wants you to surrender unconditionally - they are also likely rolling in 500+ gpt and will rushbuy everything they can to replenish their losses its literally mind-boggling, and they will switch staging grounds among all their many, many cities/former puppets if one has been busted but its really easy to tell provided one pays attention with your subs constantly on the move. This poster thinks it would be best if they actually built that fleet out in open waters somewhere else, preferably under the cover of their SB umbrella and have it be really huge. But I digress.