WASHINGTON (Reuters/AFP) - The US stepped up pressure on Israels new right-leaning government on Tuesday to accept the goal of a Palestinian state and halt expansion of Jewish settlements on occupied land. Israeli PM Benjamin Neta-nyahu has so far shied away from publicly supporting a two-state solution to the Israeli-Palestinian conflict, an omission that has dismayed US, Arab and European officials. Israel has to work for a two state-solution - youre not going to like my saying this - but not build more settlements, dismantle existing outposts and allow Palestinians freedom of movement ... and access to economic opportunity, Vice-President Joe Biden said in a speech to the American Israel Public Affairs Committee, the leading US pro-Israel lobby. He also said the Palestinian Authority must combat terror and incitement against Israel. He focused on the Obama Administrations efforts to persuade Iran to abandon its nuclear programme. We will pursue direct, principled diplomacy with Iran with the overriding goal of preventing it from acquiring nuclear weapons, Biden said. The US will approach Iran initially in the spirit of mutual respect - we want Iran to take its rightful place in the community of nations politically and economically, Biden said. Biden also asked Arab states to make meaningful gestures towards ending Israels isolation ahead of the first top US-Israel talks since President Barack Obama took office and Benjamin Netanyahu was elected Israels premier. He said the US stood behind Israels security. Israels security is non-negotiable, Biden said. The US will continue to provide Israel the assistance it needs and allow it to make its own judgments about what it must do to defend itself, he added. Earlier in an interview with The New York Times, exiled Hamas supremo Khaled Meshaal said the Palestinian movement could support a two-state solution with Israel based on 1967 borders but repeated it was not prepared to recognize the Jewish state, according to a Tuesday report. He appeared to reach out to the West, stressing it had stopped firing rockets into Israel and was seeking a long-term truce. I promise the American administration and the international community that we will be part of the solution, period, Meshaal told the daily in an interview spread over two days in his home in the Syrian capital Damascus. Meanwhile, the Palestinian Authority said on Tuesday that the position on the peace process outlined by Israeli Prime Minister Benjamin Netanyahu to an influential US lobby group is ambiguous. The statements by the Israeli Prime Minister to the American Israel Public Affairs Committee are ambiguous and insufficient, Palestinian President Mahmud Abbas spokesman Nabil Abu Rudeina said in Ramallah. Israeli PM Netanyahu called for a fresh triple-track approach to peace with the Palestinians that includes an immediate resumption of talks without conditions. But in his address to AIPAC by satellite link from Jerusalem, Netanyahu did not mention the goal of a two-state solution embraced by the new US administration of President Barack Obama. I believe its possible to achieve (peace), but I think it requires a fresh approach, he told the annual policy conference of the American Israel Public Affairs Committee (AIPAC). The fresh approach that I suggest is pursuing a triple track towards peace between Israel and the Palestinians: a political track, a security track and economic track, Netanyahu said.