At the same time, the French government assured its population it would never cede the once-disputed Alsace-Lorraine territory to Germany, nor would locals be forced to speak German.
Some have called the hack the biggest in Germany's history.
Referring to Germany's temporary seat at the United Nations Security Council, Merkel said that her country would champion "global solutions."
The president has lobbed attacks at the leaders of some of America's closest allies, as well as those of international rivals.
"The threat of car tariffs is still on the table," said Eric Schweitzer, president of the Association of German Chambers of Industry and Commerce.
Harvard said the German chancellor will be its principal speaker at the ceremony next May.
"We know that we can only solve things through being reasonable and through dialogue," the German chancellor said.
"There are too many powers that wish to thwart us," French President Emmanuel Macron warned in a speech before the German parliament.
The German chancellor's support of French President Emmanuel Macron's calls for a unified European force came as U.S. President Donald Trump criticized the idea, mocking France's loss to the Nazis in World War II.
"You are Madame Macron," a elderly woman told German leader Angela Merkel. "I am the chancellor of Germany," the head of state replied.
Heiko Maas believes the return of Democrats to power in the House of Representatives could lead to greater cooperation from the United States when it comes to international affairs.
"We have to protect ourselves with respect to China, Russia and even the United States of America," the French president said Tuesday.
Macron said Merkel "has never forgotten what Europe's values are and she leads her country with great courage," referring to her announcement as "extremely dignified."
The German chancellor informed the Christian Democratic Union of her decision after a disappointing result in Hesse regional election.
The chancellor said there was an "urgent need for further clarification" of the circumstances surrounding Jamal Khashoggi's killing.
Pushing back against the idea, Merkel criticized a proposition, saying it limits the freedom of members of the German parliament, known as the Bundestag.
Merkel and Trump have sparred numerous times since the U.S. president took office. In recent months, Trump has criticized Germany's plan to move ahead with a Russian pipeline called Nord Stream 2.
German media is hotly debating the chancellor's slide in the polls as her party voted out her ally of 13 years.
Hans-Georg Maassen suggested that a video showing far-right violence against migrants was fake.
"We won't accept that, surreptitiously, entire groups—Jews, Muslims—be excluded from society," the German chancellor said