Iran remained suspicious of Bush despite his pledge of "good will begets good will".
Meanwhile, Saskatchewan Premier Scott Moe wrote that Bush was "a humble, well-respected political figure while serving and through his many years post-presidency".
In January 2006, Bush, despite his advancing age, visited Pakistan to meet the survivors of the 2005 devastating quake that rocked the northern part of the country.
In 2011, Obama awarded Bush the highest USA civilian honor, the Presidential Medal of Freedom.
After Bush emphatically said Saddam's aggression "will not stand", US-led forces routed Iraq's army in the Gulf War, driving it from Kuwait while stopping short of taking Baghdad, Iraq's capital.
Clinton added that Bush never stopped serving even after leaving office, working on tsunami relief in Asia and within the US after Hurricane Katrina.
Bush wasn't well enough to attend the event, so Mulroney paid the former president a visit at home before the ceremony. The former president, a Republican, is expected to lie in state in the US Capitol and then be buried at his presidential library in Texas, where students held a candlelight vigil early Saturday, local media reported.
George Herbert Walker Bush was sworn into a world he called "rich with promise". He was a friend to all he met.
Former President Bill Clinton, who defeated Bush in the 1992 election, said, "Hillary and I mourn the passing of President George H.W. Bush, and give thanks for his great long life of service, love and friendship".
China promises action on U.S. trade deal but gives no details
But Trump spent much of Tuesday threatening to increase existing tariffs and impose new ones if the two sides can't make a deal. His "tariff man" declaration also contradicts assertions made by the White House that Trump preferred a deal to tariffs.
US stocks sharply higher on US-China trade truce; oil surges
Xi and Trump agreed to "have further exchange of visits at an appropriate time", Wang said. In its turn, Beijing responded with tariffs on $110 billion of U.S. goods.
Two US Marine planes crash while refueling off Japan
A Japanese government official said the person, rescued by the Japanese Self-Defense Forces, is in a stable condition. A search and rescue operation is under way in Japan after an incident involving two US Marine Corps aircraft.
In a statement on his social media, Museveni praise Mr.
"Through his essential authenticity, disarming wit, and unwavering commitment to faith, family, and country, President Bush inspired generations of his fellow Americans to public service", Trump said in a statement.
But progress on his watch was felt around the world, the fall of the Berlin Wall and the end of communism in Eastern Europe perhaps most notably, the liberation of Kuwait after the Iraqi invasion.
The statement was issued while the Trumps are in Buenos Aires, Argentine for the Group of 20 summit.
"On behalf of the French people, I convey all my condolences to the American nation for the loss of former President George Bush". At a time when the Cold War was ending and the influence of Soviet-style communism was withering, Bush's military and diplomatic actions firmly cast the United States as the world's leading superpower. The Obamas, in a statement, said Bush's life was "a testament to the notion that public service is a noble, joyous calling. And he did tremendous good along the journey". As President, Bush oversaw an worldwide coalition to force Iraqi troops out of Kuwait in what was known as Operation Desert Storm.
They said: "It's a legacy of service that may never be matched, even though he'd want all of us to try".
Former US president George HW Bush, who guided America through the end of the Cold War and launched the global campaign to drive Iraqi strongman Saddam Hussein's forces from Kuwait, died Friday at his home in Houston.
Family spokesman Jim McGrath says Bush died shortly after 10 p.m. Friday, about eight months after the death of his wife, Barbara Bush.
In addition to being President and Vice-President, Bush had also served as a Congressman from Texas, U.S. ambassador to the United Nations, director of the Central Intelligence Agency (CIA), and as an envoy to China.
Only one other USA president, John Adams, had a son who also became president.