The UN, USA and Quartet have all said that the Green Line must be the starting point for borders. The reason why is that, whatever Israel did or didn't do in the 1967 war, countries are prohibited from acquiring territory by force or conquest. That is a clear stipulation in the Geneva Conventions and is there to prevent any repeat of Nazi Germany's expansionism in WW2. ALL countries have to comply with it and there is no exception for offensive or defensive wars and can be no exception for Israel. Plus there is a widespread international recognition that Israel uses the word 'security' all too loosely, as it always seems to strangely involve building more illegal Jewish settlements on Palestinian land, witness Area C and the Jordan Valley - i.e. it is an Israeli con job.
Labour's Corbyn sets up inquiry into anti-Semitism in the party, Guardian reports (Haaretz)
from the article: Palestinians: It's up to Israel to get peace talks going