He has no power base of his own to call upon for support.
He added: "We have the ability to surge significant numbers of firearms officers and can call upon military support, however, this takes time and the time frame of the Paris incident shows that a robust initial response is vital".
Iran could, for instance, call upon for support its fellow co-religionists in Lebanon, especially the formidable Hizbullah militia, Bashar al-Assad's Alawite Shia dominated government, the Shia majority in Bahrain, and not to forget the Shia minority in Eastern Saudi Arabia.
Health systems research is being increasingly called upon to support scaling up of disease control interventions and to support rapid health sector change.
And if the movement to support this referendum grew powerful enough, as candidates for Congress get called upon to support the Citizen Equality Referendum, then conceivably, the term of the referendum president could be quite short.
Recalling the reluctance of the States to support George Washington's federal army, Randolph complained about the "Imbecility of the Confederation... conspicuous when called upon to support a war".
Commuters on India's roads and highways found themselves called upon to support Free Basics from what seemed like thousands of billboards.
Public funds can be called upon to support the cost of medical care, and there are a variety of private insurance plans available to the consumer.
Chummy appears briefly in the Christmas special but returns to centre stage in episode one, when she is called upon to support a local mum in a difficult situation".
The one decision Mr Brown will definitely not have to make is whether to invade Iraq alongside Mr Bush.But he may be called upon to support a military strike against Iran.
