It remains to be seen how long the truce will hold and whether it will pave the way for a nuclear deal between the U.S. and Iran.

"We have two countries that have been fighting for so long, they don't know what the f-ck they're doing," Trump said.

The head of the Israel Defense Forces said Tuesday that “the campaign against Iran is not over” as a ceasefire between the two countries went into effect. President Donald Trump also vowed that Israel will not attack Iran and told Israel to bring its pilots home.