In reality, a nation doesn't wait until its entire army is destroyed, nor do they wait until a unit to get destroyed before surrendering. This game does not currently incorporate this feature of war. So this is my proposal:
Surrendering a unit: I propose a new button when you look at a unit that's fighting that reads 'surrender' beside the retreat button with a white flag as its symbol. Then at least one enemy infantry unit must go to the territory to pick up the prisoners to put them in their nearest POW camp. If every enemy unit in the territory/city leaves before the surrendering unit is picked up, it goes free, and if it can capture territory, it reclaims the territory.
Surrendering a country: With this function you can surrender your country (not that many players would) to any country you are currently at war with. This would make all your units go to a POW camp, and all your territory, resources, and missiles to be handed over. The cities would not be annexed when handed over. Units that are surrendered CANNOT recapture the territory they're in, whether they can usually capture or not. If they leave a POW camp, and win the subsequent battle, they still cannot capture the territory. Of course, other countries can also surrender to you!
POW camps: Can be built in friendly and annexed cities as a building, and upgrading it increases the amount of units it can hold. If the city is captured, or the building is destroyed, all the prisoners move to the nearest friendly territory. If they cannot, they will be stuck in the city, but as a free unit. If the building loses a level, the number of prisoners more than the new capacity return to the nearest friendly territory. If any units are evicted, they will automatically attack units in the city, and if they succeed with something that can capture territory, the city is theirs. So be careful with where you put these camps and what you use to guard them.
What you can do with the prisoners: I propose several options of what you can do with you prisoners. They are as follows:
1. Kill them (requires a unit that does damage).
2. Convert to your troops. Takes 1 day. 50% chance of success. If it's a failure, all you've wasted is time.
3. Release them. If you're feeling especially nice, you can release the prisoners to their territory. Of course, this option doesn't work if the country had already surrendered.
If you don't have a POW camp, but an enemy surrenders: In this case, the prisoners remain where they are, and if you have a unit that does damage there, you can choose to destroy the unit. If it's just the unit, you can release them as well.
Surrendering a unit: I propose a new button when you look at a unit that's fighting that reads 'surrender' beside the retreat button with a white flag as its symbol. Then at least one enemy infantry unit must go to the territory to pick up the prisoners to put them in their nearest POW camp. If every enemy unit in the territory/city leaves before the surrendering unit is picked up, it goes free, and if it can capture territory, it reclaims the territory.
Surrendering a country: With this function you can surrender your country (not that many players would) to any country you are currently at war with. This would make all your units go to a POW camp, and all your territory, resources, and missiles to be handed over. The cities would not be annexed when handed over. Units that are surrendered CANNOT recapture the territory they're in, whether they can usually capture or not. If they leave a POW camp, and win the subsequent battle, they still cannot capture the territory. Of course, other countries can also surrender to you!
POW camps: Can be built in friendly and annexed cities as a building, and upgrading it increases the amount of units it can hold. If the city is captured, or the building is destroyed, all the prisoners move to the nearest friendly territory. If they cannot, they will be stuck in the city, but as a free unit. If the building loses a level, the number of prisoners more than the new capacity return to the nearest friendly territory. If any units are evicted, they will automatically attack units in the city, and if they succeed with something that can capture territory, the city is theirs. So be careful with where you put these camps and what you use to guard them.
What you can do with the prisoners: I propose several options of what you can do with you prisoners. They are as follows:
1. Kill them (requires a unit that does damage).
2. Convert to your troops. Takes 1 day. 50% chance of success. If it's a failure, all you've wasted is time.
3. Release them. If you're feeling especially nice, you can release the prisoners to their territory. Of course, this option doesn't work if the country had already surrendered.
If you don't have a POW camp, but an enemy surrenders: In this case, the prisoners remain where they are, and if you have a unit that does damage there, you can choose to destroy the unit. If it's just the unit, you can release them as well.