And Mr. Trump is set to deliver a major speech at the site of the Warsaw Uprising during World War II. Check back throughout the day for more coverage of his trip.
Separately, an American congressmans video calling for stronger antiterrorism measures, filmed at a gas chamber at Auschwitz in Poland, drew a rebuke from the former extermination camps museum. He retracted the video.
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President Xi Jinping of China will also be in Hamburg, ready to slip into the widening gap between Mr. Trump and Americas longtime European allies and to position Beijing as a defender of a multilateral, rules-based world order.
Mr. Xi was already in Germany for a state visit, where all eyes were on the two new pandas at Berlins zoo and his friendly meetings with Chancellor Angela Merkel. (Above, the two watching a soccer match.)
There was less focus on Liu Xiaobo, the Chinese Nobel Peace laureate. China agreed to allow doctors from Germany and other countries to see him for his late-stage cancer, but ignored pleas for treatment abroad.
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The European Union and Japan are set to commit to a free trade deal. A political agreement on the accord could be signed by leaders in Brussels today.
We ironed out the few remaining differences, Cecilia Malmstrom, the E.U.s trade commissioner, said. But it is unclear whether details in contentious areas such as dairy products have been addressed.
Today, the European Space Agency will provide details on its joint mission with Japan to Mercury, set to depart from Earth next year and to reach the distant planet by 2025.
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The geopolitical feud between Qatar and Arab countries, including Saudi Arabia, looks set to stretch further into the summer.
As Saudi Arabia accuses Qatar of spreading Islamist extremism, British politicians are debating whether the Saudis themselves may deserve more of the blame.
In Syria, Russia is rewarding security contractors with oil and mineral rights in territory they secure from the Islamic State.
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North Korea has tested a missile that could potentially hit Alaska. The U.S. responded with a military drill in the Korean Peninsula and urged for tougher United Nations sanctions against the country.
Self-restraint is the only thing stopping the U.S. and South Korea from going to war with the North so says the highest-ranking American general on the peninsula.
We examined war plans drafted in preparation for a potential military confrontation. Even a surgical U.S. strike would risk staggering casualties.
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Volvo, the Sweden-based automaker owned by Geely of China, said that it would introduce only hybrid or electric models starting in 2019. Thats a first for a mainstream car company.
Minutes of the Federal Reserves June meeting revealed a debate over how quickly the Fed should begin to reduce its securities portfolio.
Technology stocks and exchange-traded funds are ever more popular, putting traditional mutual fund managers on the defensive.
Qatar Airways, Turkish Airlines and other carriers said that an American ban on carry-on laptops on their U.S.-bound flights has been lifted.
Heres a snapshot of global markets.
Simone Veil, a former French health minister who died last week at 89, will be one of the few women laid to rest in the Panthon, which holds many of Frances most revered figures. Here, in French, are her sons tributes at military honors in Paris. [LObs]
Suspects in the downing of a Malaysia Airlines flight over Ukraine three years ago will be tried in a Dutch court, but a possible extradition from Russia appears unlikely. [The New York Times]
The Vaticans offer to treat Charlie Gard, a terminally ill British infant, has highlighted the churchs views on end-of-life care. But doctrine isnt clear-cut. [The New York Times]
We discussed President Trumps denunciations of CNN with the networks president. The level of threats against employees has spiked this year, he said. [The New York Times]
Tips, both new and old, for a more fulfilling life.
Stereotypically macho messages limit childrens understanding of what it means to be a father, a man and a boy.
Yotam Ottolenghi, the Israeli-British chef, suggests blueberry, almond and lemon cake as the perfect companion to a cup of tea.
At Wimbledon, Petra Kvitova faltered, and millions of flying ants invaded the courts for mating season. Heres todays match schedule.
Lionel Messi extended his contract with Barcelona until 2021, ending speculation that he could be tempted to leave.
Game of Thrones returns July 16. We caught up with Lena Headey, who plays Cersei Lannister, at her home in West Yorkshire, England. (She was guarded about plot twists.)
Carmen is perhaps one of the most overdone operas. But Dmitri Tcherniakov, the experimental director, refreshed it for the Aix Festival in southern France with new spoken dialogue.
Finally, around the Arctic Circle during the summer, many living things have reasons to celebrate twilight replacing the night. Only humans and dew worms end up cranky.
No matter where you are, it seems everyone complains about inaccurate weather forecasts.
In 1954, The Times reported that meteorologists were asking the public for a better understanding of their complex work.
The Weatherman is tired of being the butt of a parade of stale jokes, the article read.
But thanks to satellites and ever more advanced data analysis, short-term predictions of three to five days have become remarkably accurate, said Henry Fountain, a Times reporter focused on climate change and the environment.
He cautions, however, that longer-term forecasting, of several weeks to several months, remains more problematic.
These subseasonal to seasonal forecasts, as they are called, are critical for economies worldwide, helping farmers in Australia decide how much irrigation water theyll need, for example, or international shippers plan their routes. They also affect military and disaster planning.
European forecasts are often considered better than most, in part because European governments often devote more resources to them.
But the U.S. is trying to catch up. The government this spring enacted a law that prioritizes research to improve longer-term modeling.
Jennifer Jett contributed reporting.
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G-20, Donald Trump, Wimbledon: Your Thursday Briefing - New York Times