By Gram Slattery, Alexander Cornwell and Parisa Hafezi WASHINGTON/TEL AVIV/ISTANBUL (Reuters) -The ceasefire brokered by U.S. President Donald Trump between Iran and Israel appeared to be holding on Wednesday a day after both countries signalled that their air war had ended,

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

After twelve days of intense strikes between Israel and Iran – punctuated by the United States’ bombing of Iranian nuclear sites over the weekend and Tehran’s performative retaliation – a US-brokered ceasefire appeared to be holding on Tuesday.