How will all Israel be saved?

Paul said in Romans 11 that all Israel shall be saved. Zechariah gives detail to that statement. He also sets out issues in respect of Israel in end-times. These things refute so called replacement theology.

1 Israel's problem - their current problem being a secular nation but their problem to come is the nations of the world coming against them.

2 Israel's protector. Although we are told many will be slain we see the Lord shielding the nation from total obliteration;

3 The miracle of Israel's salvation - ref to Isaiah 53.

4 The results of Israel's salvation.