@Adiloi Welcome to the forum. The answer to your questions depend on which version of a
Axis and Allies you play.
Typical out of the box (OOB) rules which probably apply here since it sounds like that is what you are doing. Assuming that is true:
yes. Each time a capital is captured, the attacker gets that country’s IPCs. In principle this could continue in a loop, but a couple of items prevent this in normal game play.The main one is that if the Germans take UK and get their money, the US or UK have to take England back. Thus they have to have the forces available to get it.
Another is that if England does not have its capital at the end of its turn, then it does NOT collect any IPCs, regardless of how many other territories it owns. So there will be nothing for the Axis to take.
However, you have hit upon a significant tactical decision in the game --> when to liberate a captured capital is very important to the overall strategy of the defender. If it is going to be easily re-captured, you are essentially helping your opponent. This is rarely a consideration in London–if the Germans take it, they will want to keep it–and the US will do just about anything to take it back. But in a global game (which you aren’t currently playing) trading India between the Japanese and UK pacific is often a real conundrum.
Other versions played on this site, change this rule such that capturing a capital only gains income the first time. Each successive capture only returns the money to the bank, i.e., no one gets it.
