{And keep yourself patient [by being] with those who call upon their Lord in the morning and the evening, seeking His countenance. And let not your eyes pass beyond them, desiring adornments of the worldly life, and do not obey one whose heart We have made heedless of Our remembrance and who follows his desire and whose affair is ever [in] neglect.} (Quran 18:28)

Imam Muslim reported that the prophet (S.A.W.) said: "Behold, the Imam is but a shield from behind whom the people fight and by whom they protect themselves." The prophet (S.A.W.) orders us in this Hadith to appoint a Khalifah and that his presence in the Ummah protects the Ummah from the evil of the enemies and that his absence from the Ummah is the absence of the protection. In this case, the Ummah becomes a weak prey for its enemies like what is happening today.

http://www.globalresearch.ca/four-mil...