be a reason for tension between the two countries. News reports had previously been issued claiming that Egypt would not work with the Netanyahu administration unless Lieberman personally apologized. The administration labeled them "inaccurate and out of all proportion". On 9 April, Mubarak invited Netanyahu to meet with him personally in Sharm e-Sheikh. Unofficial channels for discussion were also reportedly being considered. During a meeting with Egyptian intelligence chief Omar Suleiman in April 2009, Lieberman made an attempt at an apology, expressing "his respect and appreciation for Egypt's leading role in the region and his personal respect for Egyptian President Hosni Mubarak and Minister Suleiman". On 21 August, Lieberman said that it is important for Israel to make sure that the Egyptian-Israeli peace treaty is upheld, and not to remain silent as Egyptian military forces enter the Sinai. Concern was raised by Israeli officials over Egyptian failure to notify Israel about the deployment of tanks in the Sinai, which violates the peace treaty. Lieberman said, "We must make sure that every detail is upheld, otherwise we'll find ourselves in a slippery slope as far as the peace treaty is concerned." As instability in the Sinai continued into the next month, Lieberman responded to calls to deploy more troops with "The problem in Sinai is not the size of the forces, it is their readiness to fight, to put pressure and to carry out the job as is needed." On 28 August, Lieberman invited Egyptian President Morsi to visit Israel, after being encouraged by Morsi'is statements in late August that the Israel-Egypt peace treaty was secure. Lieberman said, "We certainly hope to see Morsi hosting official Israeli representatives soon; we want to see him giving interviews to Israeli media; we want to see him in Jerusalem as President (Shimon) Peres' guest." Statements about Palestinians Following a series of terror attacks on Israeli civilians perpetrated by Palestinian militants during a three-day period in March 2002, Lieberman proposed issuing an ultimatum to the Palestinian National Authority to halt all militant activity or face wide-ranging attacks. He said, "if it were up to me I would notify the Palestinian Authority that tomorrow at ten in the morning we would bomb all their places of business in Ramallah, for example." This led then Foreign Minister Shimon Peres to respond that excessive military measures could lead to accusations of war crimes and that the Israeli administration