Angela Merkel marks the ruling 10 on Sunday, and her refugee crisis is the biggest challenge ever since her swearing-up as the first German chancellor in history.

Two years ago Merkel won the election for the third time, thanks to, among other things, the way in which he dealt with the debt crisis in Europe, proving himself as the leading state on the continent.
But widespread concern about the refugee crisis, which many people think Merkel has driven her, is now the biggest threat to her political authority since she was 10 years old for a chancellor.
"She is certainly in trouble," says Heribert Dieter, an analyst at the German Institute for International and Security Affairs. "It will be hard to work to get back to the position it has had in Europe before the refugee crisis."
As the leader of the largest European economy, Merkel has built great political capital and respect as a crisis manager. "This is the main concept that Germans have about it," says Oscar Niedermayer, a political analyst at the Berlin Free University.
The success that led Germany through the global financial crisis and the Greek debt crisis was upgraded by opposing Russian President Vladimir Putin in the Ukrainian crisis.
A former scientist from the Communist East Germany, a physicist of quantum chemistry, used his political skills on an international stage to enhance the reputation and importance of the united Germany that all chancellors wanted from the fall of the Berlin Wall before the 25 years.
This is the 61 year-old pastor's daughter who led the position of the most powerful woman in the world, according to Forbes.
Her decision to open wide the German border to asylum was, however, sparked by sharp criticisms in the ranks of her Christian-Democratic Union (CDU) and especially in the sister-in-law of the Bavarian Christian Social Union (CSU).
Dissatisfaction with the traditional allies keeps growing concern among the general population on whether Germany can handle so many migrants, which will probably only be more than a million this year.
Deadly terrorist attacks in Paris could give chancellors the opportunity to once again demonstrate how skillfully they manage crises.
Merkel was supposed to lead her government to Germany and the Netherlands on Tuesday in Hanover and show her in front of global terrorism. But the game was canceled for a terrorist threat.
After the bloodshed in Paris, some voters could begin to believe that among the thousands of refugees who come to Germany on a daily basis have terrorists.
Most electoral bodies, the 52 percent, were not happy with the way Merkel relies on the refugee crisis and before the attack on Paris, according to the ZDF survey.
The chancellor's view on refugees is not the first to shake up the German political establishment.
In 2011., After a nuclear disaster in Fukushima, suddenly turned to 180 degrees, dropped out of nuclear power support, and announced the plan for the gradual closure of German nuclear power plants.
Now it is support, and Merkel and its alliance CDU / CSU have begun to fall. At the same time, support for populist counter-invasive Alternatives for Germany (AfD) is growing, so alarm bells have started to ring in its political bloc.
Merkel will test its popularity already on Friday at the CSU annual congress, a party that translates into criticism of its migration policy. The party leader and the Bavarian Prime Minister's policy of the open borders of his ally is considered "wrong".
Merkel is also waiting for the CDU annual convention next month. Most political commentators expect Merkel to run for 2017 for the fourth time. Despite the problems with refugees, Merkel will not be faced with calls to leave the party leadership, partly because it has managed to resolve all the rivals in the party.
"There is no power struggle in the CDU," Niedermayer said. "Membership only wants to change the policy towards refugees".
Wins 2017. would mean another four years in power for Merkel, which would almost equate with his mentor Helmut Kohl, who was the longest German Chancellor since Bismarck. Before that, in March, 2016., The CDU are awaiting elections in three important German federal provinces. If you continue to be dissatisfied with the refugee crisis, its party might be on a big exam.
Regardless, many politicians paid a high price because they underestimated. Her urge to stay in power, as one of the key features, could help her stay in the office for some time.