The rest of your post rests on this point.Ford Prefect wrote:In this modern world expanding your nation's borders by conquest is condemed, and rightly so, as unjust.
I think it's sufficient to note that Israel's expansion-by-conquest was done in a *defensive* war. Israel did not go out and attack other nations to take their land. Israel was attacked, and in response, it pushed back its attackers and siezed military control of nearby lands. I see no reason to condemn such a response.
Simply put, Israel has every right to take control of the land it conquered *from its attackers* as long as it has reasonable claim that controlling that land will protect it from further attacks. It has every right to create security fences, checkpoints, etc. within those conquered lands -- and it can continue to do so until such time as an authority steps up to govern the lands in such a way that Israel's security remains protected.
Israel cannot permanently claim the extra land inside the fence. But it can build the fence around land it does not own (but controls as a result of a war in which it was attacked by other nations) in order to ensure its own security. If the Palestinians ever get a government that actually helps them build a legitimate civil society, and security forces that stop suicide bombers instead of aiding them, Israel should take the fence right down. As soon as the Palestinians get a non-terrorist government that keeps the peace with Israel, tear the wall down. But right now, the Palestinians have a terrorist government -- so right now, Israel has every right to build a wall to keep them out, even if it means cutting them off from some of their "own" (heh) territory.