WASHINGTON — Israel will not intervene in Syria in part because any such intervention would harm the side Israel favours, Defence Minister Moshe Ya’alon said last week.

“We don’t intervene, we do not interfere,” Ya’alon said Friday in Washington, prior to a meeting with his U.S. counterpart, Defence Secretary Chuck Hagel. “Any Israel intervention might affect the side we support, and not for its benefit.”

It’s not clear what side Israel would favour. Israel has said it backs the American demand that Syrian President Bashar Assad step down, a move that would wound Israel’s most dangerous rival in the region, Iran, as well as Hezbollah, the potent terrorist force in Lebanon.

On the other hand, Israel appreciates the quiet that successive generations of Assads have ensured on its border, and fears the rise of Islamists among rebels in that country.

Ya’alon’s remarks came as Barack Obama’s administration said it was ready to increase military support for the rebels.

Ya’alon said the red lines that would trigger Israeli actions in Syria are cross-border fire and the transfer of chemical and strategic weapons.

He said the worst possible outcome in Syria would be “a chaotic situation, but we can manage it.”

He called for increased western and U.S. support of Jordan, which has absorbed most of the refugees fleeing bloodshed in Syria.

Ya’alon was bluntly dismissive of Obama administration efforts to restart the Palestinian-Israeli peace process, blaming the Palestinian insistence on a settlement freeze before talks start again for the failure of the process.

He also dismissed as “just spin” the recently revived 2002 Arab peace initiative favoured by the Obama administration.

Ya’alon said U.S.-Israel defence and intelligence co-operation was close and that he believes it is still possible to keep Iran from obtaining nuclear weapons through peaceful means.