JERUSALEM — Israel plans this week to intensify its diplomatic campaign urging Europe and the United States to support the military-backed government in Egypt despite its deadly crackdown on Islamist protesters, according to a senior Israeli official involved in the effort.

The official, speaking on the condition of anonymity because of an edict from the prime minister not to discuss the Egyptian crisis, said Israeli ambassadors in Washington, London, Paris, Berlin, Brussels and other capitals would lobby foreign ministers. At the same time, leaders here will press the case with diplomats from abroad that the military is the only hope to prevent further chaos in Cairo.

With the European Union planning an urgent review of its relations with Egypt in a meeting Monday, the message, in part, is that concerns about democracy and human rights should take a back seat to stability and security because of Egypt’s size and strategic importance.

“We’re trying to talk to key actors, key countries, and share our view that you may not like what you see, but what’s the alternative?” the official explained. “If you insist on big principles, then you will miss the essential — the essential being putting Egypt back on track at whatever cost. First, save what you can, and then deal with democracy and freedom and so on.