Some credible references hadeeth's books...
Abu Hurairah (R.A.) says that Rasulullah (Sallallahu Alayhi Wasallam) said:
"(Armies carrying) black flags will come from KHORASAN. No power will be able to stop them and they will finally reach Eela (Baitul Maqdas) where they will erect their flags."
Ref: Saheeh Trimdi
* Hadhrat Buraidah (R.A.) says that Rasulullah (Sallallahu Alayhi Wasallam) said:
"There will be many armies after me. You must join that army which will come from KHORASAN.
Ref: Narrated by Ibn-e-Adi & Asaker & Seyuti in Jamiah Sagheer .
* Narrated by Hazrat Abdullah bin Haris(R.A) that Rasulullah (Sallallahu Alayhi Wasallam) said that
“People will come from the EAST who will make Khilafah (Islamic Rule) easy for Imam Mahdi"
Ref : Ibn-e-Majah Hadith 4088
* Narrated by Abdur Rehman Al-Jarshi that I heard companion of Dear Prophet(salallaho alayhay wa sallam), Hazrat Amr Bin Marra Al-jamli(R.A) that Dear Prophet(salallaho alayhay wa sallam) said:
"Surely Black Flag will appear from theKhorasan until the people(under the leadership of this flag) will tie their horses with the Olive Trees between Bait-e-Lahya and Harasta. We asked are there any Olive trees between these places.
He said,”If there isn’t then soon it will grow so that those people(of Khorasan) will come and tie their horses there.”
Ref: Kitab-al-Fitan Page 215. Also at Page 108 in the book “Islam main Imam Mahdi ka Tasawer” by Maulana Professor Muhammad Yousaf Khan,Jamia Ashrafia Lahore,Pakistan.
*Narrated by Alqamah from Abdullah bin Masood:
"One day we were sitting with Holy Prophet(s) when some children from the house of Bani Hashim came there. When the Holy Prophet(s) saw them, tears welled up in his eyes and he became pale.
Ibn Masood said that he told the Holy Prophet(s) "Your face reflects axiety".The Holy Prophet(s) stated:"Exalted God has granted us,the Ahlulbait, Hereafter instead of wordly pleasure.
After me,soon my Ahlubait will face calamity,harship and misery till people having black flags will rise from East and seek justice,which will be denied them.They will wage war,they will be supported and will be given what they were demanding.They will not accept until it is handed over to one from our Ahlulbait (i.e. Mahdi) .He will fill the earth with justice as it was filled with unjustice.Whoever amongst you is alive at that period, should try to reach them even if he has to tread on ince in that persuit."
reference: Sunnan Ib Maja (Vol,1 page 517 Al Tazia,Egypt):
Now after looking this picture ,
I would say that there are two possibilities...
1) Taliban will invade Iran to reach jeruslem, as this the only possible identical way to reach there..
2) It will be a joint venture of Taliban & Iran as both are holding black flags
Wallah Allam.... But if we believe in Wikileaks, I think that it will be a joint venture
From Telegraph
By Dean Nelson, South Asia Editor 8:30AM BST 27 Jul 2010
"A series of military intelligence logs, mainly from 2005 and 2006, report that Tehran offered insurgency commanders financial bounties for each soldier killed in Afghanistan. Iranian intelligence officials are also accused of supplying cash and vehicles for car bombs.
The claims are based on reports from local Afghan intelligence agents and highlight the background to American claims that Iran is waging a covert proxy war against Nato forces in Afghanistan.
The reports, disclosed by Wikileaks, include claims that in 2005, Iran offered a group of eight Taliban leaders more than $1,700 in bounty for each Afghan soldier killed and around $3,500 for each Afghan government official. Each of the Iran-based leaders were crossing into Afghanistan to raise recruits and prepare to attack coalition forces in Helmand and Oruzgan provinces.
Another report in January 2005 claimed two Iranian intelligence agents had brought more than $200,000 to Afghanistan and handed it over to aides of Gulbuddin Hekmatyar, the former Afghan prime minister who now heads one of the most deadly factions in the insurgency.
"The money was transferred to a 1990s model white Toyota Corolla station wagon. The money was hidden with various food stuffs. The Corolla was occupied by four members of the Hezb-E-Islami, Gulbuddin (HIG) terrorist organisation. The money was transported to an unknown location," the log claims.