The authorities kept the Janissaries in their barracks and slaughtered thousands of them .
In 1826 he created the basis of a new , modern army , the Asakir - i Mansure - i Muhammediye , which caused a revolt among the Janissaries .
The authorities kept the Janissaries in Janissaries ' barracks and slaughtered thousands of them .
In 1826 he created the basis of a new , modern army , the Asakir - i Mansure - i Muhammediye , which caused a revolt among the Janissaries .