Israel, seems to me, never tried to make it part of Israel. Israel never said that Palestinians in Gaza are part of Israel. Never tried to impose its civil laws in the region either. This is not what you do when you win land in war. This is what you do when you occupy territories. This is why it never was designed to be that way. It was designed as a buffer. Buffers are not designed to be part of the country. US won wars and immidiately made territories as US as possible. There was never a question in US history which laws apply to new territories. This is where Israel made a mistake and now paying for it.
Obama says world must reach climate deal in Paris 'while we still can' (Reuters)
from the article: IDF: Demolition of settlement houses may start at end of next week