Israel has tried to foster friendship with their neighbors. They did in 1948 with the U.N. partition plan, but Azzam Pasha, the General Secretary of the Arab League, was quoted by an Egyptian newspaper as threatening, “… a war of elimination and it will be a dangerous massacre which history will record similarly to the Mongol massacre or the wars of the Crusades.”
Who occupied the West Bank after that conflict? Israel? No. JORDAN?
Who occupied Gaza? Israel? No. EGYPT!
For the next two decades Jordan, Egypt, Syria, and others radicalized the Arabs living in those areas, encouraging terrorist attacks from there in violation of the 1948 armistice agreement. They were still officially at war with Israel. When, as expected, Israel defended itself the Arab League cried foul eventually launching the Six-Day War with Egypt, Syria, Jordan, and Iraq, supported by, Algeria, Kuwait, Libya, Morocco, Pakistan, Saudi Arabia, Sudan, and Tunisia. In that lopsided conflict, Israel won out pushing the Jordanian occupiers out of the West Bank and the Egyptian occupiers from Gaza, pushing them back to Egypt and taking control of the Sinai Peninsula as well.
In that conflict, Israel also also captured the Golan Heights from Syria and offered to return control of it to Syria as part of a peace agreement. That agreement was rejected by the Arabs who continued limited hostilities until the 1973 Yom Kippur/Ramadan surprise attack on Israel by Egypt and Syria, with combat support of Jordan, and Iraq, Algeria, Kuwait, Tunisia, Morocco, Pakistan, and Cuba.
Since then, Israel has been able to make peace with Jordan and Egypt, returning all of the Sinai, but most of the other belligerents are still committed to the total destruction of Israel and they are using the Arab inhabitants of the occupied territories as proxies to this end.
With such neighbors, the fostering of friendship is indeed deadly.