The militants have peace agreements with the Pakistani government since 2007.
What should Pakistan do about any attacks by these Waziristani tribesmen against Afghanistan and its allies?
- Provide shelter and sanctuary to the militants in Pakistan, protecting them from Afghanistan and NATO forces, using the Pakistani army to fight against any Afghanistani or NATO effort to retaliate against these militants?
- Allow Afghanistan and NATO to attack these tribesmen inside Pakistan, if the tribesmen attack Afghanistan and NATO?
- Pakistan should break its peace agreement and attack the militants if they attack Afghanistan and NATO?
- Try and talk the militants into not attacking Afghanistan and NATO?
Two militant groups based in the Waziristan region of Pakistan say they will co-ordinate attacks against coalition forces inside Afghanistan.
There are frequent reports of cross-border raids by the groups, who are led by commanders from the Wazir tribe.
Both the groups have had peace deals with Pakistan’s government since 2007.
Their decision to liaise comes amid assertions by the government that it will act more firmly against Pakistani groups fighting in Afghanistan.
The two militant groups who have agreed to work more closely together are led by Hafiz Gul Bahadur in the North Waziristan tribal region and Mullah Nazir who is based in South Waziristan.
The consultative committees of the two groups decided to conduct joint attacks against coalition troops in a meeting held on Monday in the North Waziristan town of Miranshah, Mullah Nazir confirmed to the BBC Urdu service.
“The purpose of this union is to boost the holy war against the infidels,” a spokesman, Mufti Abu Haroon, told the BBC.
Both groups oppose the presence of Central Asian militants in their areas, but their policy towards Arab fighters has remained vague.
Mullah Nazir shot to prominence in March 2007 when he led a Wazir tribal force to evict Central Asian militants from the Wana region of South Waziristan.
His campaign was backed by Pakistani troops based in the region.
The government also entered an accord with the North Waziristan militants led by Hafiz Gul Bahadur following clashes between them and the security forces in the summer of 2007.
Both groups publicly admit to fighting inside Afghanistan.