It has taken a long time for the United Kingdom to shake off its empire. The obsessions with the Great Game, of keeping secure the shipping routes, and imposing British will in matters of trade have been forgotten. But the habit of sending in the military to solve problems has been hard to break.
Until 29th August 2013 the normal position for Britain and its allies was to use armed force to deal with some foreign problems. Even though it was clear that western military intervention frequently failed, disastrously so in Vietnam, Afghanistan and Iraq, the automatic way of dealing with Syria's crisis has been seen as military. This means an attack by missiles and not infantry, because the physical and psychiatric post-war suffered by soldiers has become unacceptable.
Until the Iraq invasion of 2003 the Royal Prerogative to launch a war was exercised by the Queen's Prime Minister. Blair, his government and the elected Members of Parliament ignored the very clear public disquiet, and what may have been the largest popular demonstration in British history. The frightening thing about David Cameron's recent attempt to join in an attack led by the USA was that it was so reminiscent of the 2003 process. The style may have been different, but the spinning of information, with the government saying clearly that the government of Syria, by Bashar al Asad's will, ordered a chemical attack of real ferocity in the Ghouta of Damascus beyond doubt. There are considerable doubts, and this should have been admitted, but some politicians were too lazy to do any research.
Although in theory from now on a Prime Minister could order British forces to war without recourse to parliamentary approval, the suffering of Iraq due partly to Blair's foolishness in 2003 has led to a new way of exercising the Royal Prerogative. In the British Constitution, Parliament is sovereign. And now a sovereign parliament has made clear to the Ministers of the Crown that war cannot be waged without the approval of the democratically elected house.
I have no idea how future parliaments will view war, but this new constitutional arrangement suggests that war will not now be the first and often only option.
I have been urging that the backers of the combatants in Syria (Russia and Iran backing the Government, Saudi Arabia, Qatar and Turkey supporting different factions of the rebels) should be put under political pressure to stop funding the civil war, and draw their clients to peace talks. Britain, having finally shaken off the default imperialist position of war as the solution could join most of its European partners in seeing negotiation as the mature response to a crisis. As a country capable of launching an attack, but choosing to seek negotiation, Britain could have a far better place among the nations.