Because it was not possible to maintain a breed of war-horses sufficiently powerful to sustain mounted shock action, the horse was restricted to a subsidiary role in warfare from the eclipse of the chariot in the middle of the 2nd millennium bc until the rise of the horse archer in the 4th century ad.
Only the Liberal Democrats, who have mounted a sustained critique of the war, stand to gain.
The fans have mounted a sustained and at times highly imaginative campaign of protests, which they have funded to the tune of almost £30,000.
They have mounted a sustained insurgency in southern and eastern Afghanistan, in areas that were Taliban strongholds, and also have spread their influence in the tribal areas of Pakistan.
It concluded: "Interests quick to take offence have mounted a sustained attack on large sections of Britain's mainstream media, both directly and via efforts to undermine the Freedom of Information Act.
Black abortion opponents, who sometimes refer to abortions as "womb lynchings," have mounted a sustained attack on the Planned Parenthood Federation of America, spurred by a sting operation by young white conservatives who taped Planned Parenthood employees welcoming donations specifically for aborting black children.
Perhaps Mr. Obama could have won a more progressive resolution to the tax-cut debate had he and Congressional Democrats taken up the issue earlier this year, when the deadline wasn't so close and when the president could have mounted a sustained public campaign.
Johnny McKnight's direction sustains the mounting tension, while Karen MacIver's music and Dave Shea's lighting skillfully, subtly accent it.
They have been mounting sustained attacks against the Afghan army in places in Helmand such as Sangin, where the British too sustained heavy casualties.
Liberals have not mounted sustained primary challenges to take out wayward incumbents the way conservatives have.
