BANGKOK (AP) — President Barack Obama said Sunday an incursion by Israel's forces into the Gaza Strip could only deepen its death toll, cautioning against an escalation even as he defended the Jewish state's right to defend itself. Obama also warned Palestinians the crisis could crush peace hopes for years.

"Israel has every right to expect that it does not have missiles fired into its territory," Obama said at the start of a three-nation tour in Asia.

"If that can be accomplished without a ramping up of military activity in Gaza, that's preferable," he said. "It's not just preferable for the people of Gaza. It's also preferable for Israelis, because if Israeli troops are in Gaza, they're much more at risk of incurring fatalities or being wounded."