CAIRO — While holding itself out as an honest broker for truce talks between Israel and Hamas over the Gaza conflict, Egypt’s new government sought on Monday to plunge into the battle over international public opinion on behalf of the Palestinian cause — an arena where the Israelis, more experienced in the world of the free press and democratic politics, have historically dominated.

In Egypt’s most concerted effort to win more global public support for the Palestinians, advisers to Egypt’s President Mohamed Morsi, a former leader of the Muslim Brotherhood who has been an outspoken supporter of Hamas, invited foreign correspondents in Cairo to a background briefing at which a senior Egyptian official sought to blame Israel for the conflict while at the same time maintaining Egypt’s role as an intermediary pressing both sides for peace. “We are against any bloodshed,” the official said repeatedly, arguing that Egypt sought stability and individual freedom for all in the region.