WASHINGTON - In a meeting with Jewish leaders, Chuck Hagel, US President Obama's defense secretary nominee, affirmed his commitment to preventing Iran from acquiring a nuclear weapon and to maintaining Israel's qualitative military edge."[Hagel] discussed his commitment to the US-Israel relationship, including his determination to prevent Iran from acquiring a nuclear weapon, to maintaining Israel’s qualitative military edge, and to sustaining the Obama administration’s unprecedented security cooperation with Israel," a statement Tuesday from Hagel's office said. "He appreciated the opportunity to have a constructive, informed and wide-ranging discussion."