Under the Geneva and Hague Conventions, of which Israel is a signatory, the acquisition of territory by war is inadmissible. Transferring the population of the occupier to the occupied territory is prohibited. Colonisation died and was put to bed a good thirty to forty years before the Six Day War. And Israel is fully aware...hence no legal annexation.
Nigeria says troops destroy extremist camp, rescue 178 people (AP)
from the article: EU slams Israel’s decision to build new East Jerusalem housing project