President-elect Donald Trump's incoming national security adviser, Mike Waltz, said on Sunday that if Hamas reneges on the Gaza ceasefire-for-hostages deal, the United States will support Israel "in doing what it has to do.

I'm not confident,” Trump told reporters. “That's not our war. It's their war.” He said that his administration “might” help rebuild Gaza, which he compared to a “massive demolition site.”

Even before it was signed, the Gaza ceasefire forced Israeli Prime Minister Benjamin Netanyahu into a tight spot - between a new U.S. president promising peace and far-right allies who want war to resume.

The Israel-Hamas ceasefire entered a third day Tuesday, while US President Donald Trump said he doubted the fragile deal would hold.Desperately needed humanitarian aid has begun to flow into war-battered Gaza after Israel and Hamas conducted the first exchange of hostages for prisoners agreed under the terms of the ceasefire.

US President Donald Trump said Monday he was not confident a ceasefire deal in Gaza would hold, despite trumpeting his diplomacy to secure it ahead of his inauguration.