ALA that were too weak to pose much of a threat to the Israelis, but the arrival of the powerful Iraqi force led the Arabs to believe they would be able to cut Israel in two. While setting down the Iraqis were reinforced by another infantry brigade and another armoured battalion. The build-up continued steadily, with the expeditionary force reaching seven or eight infantry brigades, an armoured brigade and three air force squadrons. In late May, the Haganah launched a major assault against the Arab Legion's positions in the Latrun police fort on the Jerusalem-Tel Aviv road. The Israeli attacks were extremely heavy, prompting the Jordanians to plead with the Iraqis to attack to draw off Israeli forces from Latrum; either northwest toward Haifa or north into Galilee. The Iraqi army was slow to respond and only launched two half-hearted attacks that were easily defeated by local Israeli forces. Nevertheless, Haganah commanders pinpointed the Iraqi presence, by its size and location, to be a dangerous threat in a possible offensive. The Israelis decided to launch a preemptive attack south from Galilee to take Jenin, and possibly Nablus, and cut the Iraqi supply lines across the Jordan River. To achieve that the Israelis would employ three brigades: Alexandroni, Carmeli and Golani. At the same time, the Iraqis were planning the exact offensive the Israelis feared. As the first truce was approaching, the general headquarters of the Arab forces in Zarqaa ordered the commander of the Iraqi forces in Shechem to take control of a number of Israeli settlements in order to strengthen their position at the ceasefire talks. It was decided to take control of the port of Netanya, as it was considered an essential target and an important commercial center, and it would split Israeli communications between north and south - thus denying the Israelis movement between their internal lines. The Israeli preemptive offensive began on the night of 28 May and caught the Iraqis by surprise. The plan called for the Alexandroni Brigade to make a diversionary attack against Tulkarm, while the Golanis would drive south toward Jenin; holding the high ground to the north. Then, the Carmeli Brigade would exploit the success passing though the Golani's lines and seize the town itself. The Golani attack to the north made good progress - despite the Alexandronis failing to execute their feint - and took a series of hills, villages