Final answer:
European imperialism led to the fall of the Ottoman Empire, which was an Islamic empire extending across Southeast Europe, Western Asia, and North Africa.
Step-by-step explanation:
In which area of the world did European imperialism lead to the fall of an Islamic empire? Among the Islamic empires that fell due to European imperialism, the Ottoman Empire is a prominent example. European imperialism, characterized by the relentless advance of Western industrial, commercial, and military power, contributed to the weakening and eventual disaggregation of this empire. The Ottoman Empire, which at its peak expanded across Southeast Europe, Western Asia, and North Africa, began to lose territories in the 19th century, leading to its ultimate dissolution in the early 20th century after World War I.