Media mogul K. Robert Murdoch on Thursday decried the "ongoing war against the Jews" and demanded an end to efforts to isolate Israel.

Accepting an award from the Anti-Defamation League for his support of Israel, Murdoch described the phenomenon of delegitimizing Israel as a "soft war" which he said has now entered a "new phase."

This is the soft war that seeks to isolate Israel by delegitimizing it," Murdoch told attendees at the New York dinner where he was bestowed the ADL International Leadership Award. "The battle ground is everywhere – the media, multinational organizations, NGOs. In this war, the aim is to make Israel a pariah.

Murdoch told participants at the dinner that signs were abounding of rising anti-Semitism, particularly from elements on the Left under the guise of legitimate criticism of Israel.

When Americans think of anti-Semitism, we tend to think of the vulgar caricatures and attacks of the first part of the 20th century, Murdoch said. Now it seems that the most virulent strains come from the left. Often this new anti-Semitism dresses itself up as legitimate disagreement with Israel.

He urged the Obama administration to continue its support of Israel and warned against distancing itself from Jerusalem in order to gain credibility in the Muslim world.

Some believe that if America wants to gain credibility in the Muslim world and advance the cause of peace, Washington needs to put some distance between itself and Israel," he said. "My view is the opposite. Far from making peace more possible, we are making hostilities more certain.