Praise be to Allah, the Lord of the World; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.
There is no doubt that Dajjal (the Antichrist) will come. This is not a myth nor a fairy tale. It is a true fact. For evidence.
On the other hand, Dajjal is not a nation nor a group or an instrument, it is a human being from the children of Adam (Alaihi As-Salaam) whom Allah Created like any other person.
The Prophet (Sallallahu Alaihi wa Sallam) mentioned many of his characteristics which are similar to those of normal human beings.al-Bukhari reported from Abu Hurairah that Allah's Apostle (Sallallahu Alaihi wa Sallam) said, "Shall I tell you about the Dajjal a story of which no prophet told his nation?
The Dajjal is one-eyed and will bring with him what will resemble Hell and Paradise, and what he will call Paradise will be actually Hell; so I warn you (against him) as Noah warned his nation against him