The reason the rationale for invading Gaza keeps changing, (from rocket-fire to Hamas infrastructure to strengthening deterrents to weapons smuggling to ceasefire violations etc) is because the Israeli leadership wants to conceal the true objective. The purpose of "Operation Cast Lead" is to conduct a dress rehearsal for another invasion of Lebanon.
That's the real goal. Israel has never recovered from its defeat at the hands of Hezbollah during the 33 Day war in 2006, so it is planning to restart hostilities. The attack on Gaza is just a "dry run" to strengthen morale and put the finishing touches on the battle plan. That's why there's such a disparity between the implicit risks of the current operation and its minuscule strategic gains. It's not really Hamas in the cross-hairs, but Hezbollah; and this time, Israel hopes to crush them with overwhelming force. The massive week-long aerial bombardment of Gaza; the pounding by heavy artillery units, and the deployment of elite troops and armored divisions, all presage a massive Normandy-type invasion of Lebanon with the probability of high casualties.
Gaza has also been the testing ground for new Defence Minister Ehud Barak and Chief of the General Staff Gabi Ashkenazi. Barak and Ashkenazi replaced former Defence chief Amir Peretz and Israeli Air Force Commander Dan Halutz, the two main scapegoats for the failed campaign. The new leaders are expected to take what they've learned in Gaza and use it in Lebanon. So far, the invasion appears to have gone according to plan.
Israel's Tonkin Bay?
Two days before Israel began its bombardment of the Gaza Strip, UNIFIL (UN peacekeepers) increased the number of daily patrols along Lebanon's southern border. According to the Jerusalem Post, "The decision to increase UNIFIL's patrols had nothing to do with Israel's military operation... but rather with the international organization's goal to monitor the implementation of Security Council Resolution 1701."...............................
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THE SMOKING GUN?
According to the Jerusalem Post: "On Monday, Lebanese president Michel Suleiman suggested Israel was responsible for eight rockets that were found in southern Lebanon, saying that he fears "it is an Israeli attack to implicate Lebanon," according to the NOW Lebanon news site."
The eight rockets were on timers and aimed at Israel from Lebanese territory. Was Israel planning to start a war and make it look Hezbollah was to blame? The former President of Lebanon thinks so.
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Also, the Israeli newspaper Ha'aretz reported this provocative comment by Head of Military Intelligence Maj. Gen. Amos Yadlin: "Yadlin said, 'Hezbollah might carry out a low-profile attack by means of a Palestinian organization that would be limited and not set the border alight.' He added that forces also remained on high alert in light of a possible Hezbollah strike against an Israeli target abroad." (Ha'aretz, 1-6-09)
http://www.globalresearch.ca/index.php?context=viewArticle&code=WHI20090110&articleId=11722