US Democratic presidential candidate Barack Obama on Tuesday tried to reassure Jewish voters concerned about his Muslim ties that he has "unwavering" commitment to Israel's security. Speaking to the National Jewish Democratic Council, Obama said his experience living in Indonesia for four years as a child could make him a better president. "If I go to Jakarta and address the largest Muslim country on earth, I can say, `Apa kabar,' - you know, `How are you doing?' - and they can recognize that I understand their common humanity," Obama said. "That is a strength, and it allows me to say things to them that other presidents might not be able to say. And that's part of what's promising, I think, about this presidency." Obama's stepfather was Indonesian, and the future senator lived in the country from ages 6-10.