According to Michael Oren, Eshkol's intransigence in the face of military pressure to launch an Israeli attack is considered to have been instrumental in increasing Israel's strategic advantage as well as obtaining international legitimacy, yet at the time he was perceived as hesitant, an image cemented following a stuttered radio speech on 28 May. The Egyptian President Nasser's ever more overt provocations, created diplomatic support for Israel. Eshkol eventually established a National Unity Government together with Menachem Begin's Herut party, conceding the Defense portfolio to Moshe Dayan.