I've told you the Israel occupation on West Bank has been settled through OSLO Accord.
According to the OSLO accord: Israel occupation on region C is as legal as Palestinian occupation on region A + B.
In the past, West Bank was annexed illegally by Jordan in 1948 when Arab nations attack Israel after Israel declare independence in 1948 (and Jordan never given it to Palestinian); then after Jordan attack Israel on 1967 Israel annexed it from Jordan and occupied it until OSLO Accord.
According to Israel, there is no forced migration/settlement of Israel people to the west bank, they move by their own intention/willingness hence not violate Geneva Convention.
Amnesty International's accusation has been received by UN and was investigated by ICC under UN, but no verdict from the ICC/UN that support these accusation.
first of look at this map from British Government's archives and show me where is Israel. I will post a screenshot to make it easier for you, and then you can also open the link to confirm it.
secondly, Oslo accords were not supported by majority of the Palestinians, then how can you force it upon them because they were a party to this conflict and you can't sign any agreement against the wishes of the people. That is the main reason why points agreed in Oslo accords were never fulfilled.