Donald Trump has said that terror attacks such as those seen in Manchester and Egypt "steel our resolve" to "crush the terrorists and drive them out of this Earth".
With trouble facing him back home, Mr Trump ended his nine-day overseas journey - including trips to Israel, Saudi Arabia and Europe - in dramatic fashion on Saturday, addressing US troops at a campaign-style rally.
"We travelled the world…to form a new partnership among nations devoted to the task of eradicating the terrorism that plagues our planet," Mr Trump said.
Mr Trump flipped traditional U.S. foreign policy upside down on his tour through the Middle East and Europe, coddling Middle Eastern leaders with questionable human rights records while demanding traditional European allies pay more for their defence.
Mr Trump said he had helped forge more international cooperation in the fight against Islamist militants, a threat he said was underscored by a suicide bomber in Manchester, England, and the killing of Coptic Christians in Egypt.
In the hangar at Naval Air Station Sigonella, which is also on Sicily, Trump was introduced by his wife Melania, who has raised eyebrows during the trip by twice flicking away her husband's hand when he tried to hold hers.
“My husband worked very hard on this trip and I am very proud of him,” she said.
Mr Trump called his first foreign trip a "home run"
“It was a tremendously productive meeting where I strengthen American bonds,” he said. “We have great bonds with other countries and, with some of our closest allies, we concluded a truly historic week.”
Reuters