US President Barack Obama arrives in Hanover on Sunday to join Chancellor Angela Merkel in opening the northern German city's industrial fair and to attend a summit of European leaders on global and security issues.
Obama's two-day trip to Hanover will be his fifth and likely his last visit to Germany before he leaves the White House in January at the end of his two terms as president.
The German visit also represents the last leg of a three-nation trip, which forms part of Obama's farewell to world leaders.
A survey by pollsters Emnid conducted for the news channel N24 and released on Friday found that 84 per cent of German respondents were satisfied with Obama's eight years in the White House. Only 7 per cent were unhappy with his period in office.
But there was anger on the streets of Hanover on Saturday, when tens of thousands of people rallied against the proposed US-European Union trade deal known as TTIP, with protesters arguing it will undermine workers' rights and weaken food safety standards.
Obama begins his visit to Germany by holding talks with Merkel before the two leaders officially launch the annual Hannover Messe, the world's biggest industrial trade fair. The US will be fair's partner nation for the first time.
The president will then attend a special dinner on Sunday, which Merkel is hosting at Hanover's Herrenhausen castle and which will be attended by business leaders.
After joining Merkel for the traditional tour of the fair on Monday morning, Obama and the chancellor will attend a summit also comprising the leaders of France, Italy and Britain.
Obama's meeting with Merkel as well French President Francois Hollande, Italian Prime Minister Matteo Renzi and British Prime Minister David Cameron will focus on counter-terrorism efforts following attacks in Paris and Brussels, the White House said.
The talks will also include the fight against Islamic State in Iraq and Syria, the European refugee crisis and Libya, the White House said.