The rising of Britain's 'new politics'

Cook singled out the sale of British Hawk fighters to Indonesia as "particularly disturbing". Indonesia "is not only repressive but actually at war on two fronts: in East Timor, where perhaps a sixth of the population has been slaughtered … and in West Papua, where it confronts an indigenous liberation movement".

As Foreign Secretary, Cook promised "a thorough review of arms sales". The then Nobel Peace Laureate, Bishop Carlos Belo of East Timor, appealed directly to Cook: "Please, I beg you, do not sustain any longer a conflict which without these arms sales could never have been pursued in the first place and not for so very long."

He was referring to Indonesia's bombing of East Timor with British Hawks and the slaughter of his people with British machine guns. He received no reply.

The following week Cook called journalists to the Foreign Office to announce his "mission statement" for "human rights in a new century". This PR event included the usual private briefings for selected journalists, including the BBC, in which Foreign Office officials lied that there was "no evidence" that British Hawk aircraft were deployed in East Timor.

A few days later, the Foreign Office issued the results of Cook's "thorough review" of arms sales policy. "It was not realistic or practical," wrote Cook, "to revoke licences which were valid and in force at the time of Labour's election victory". Suharto's Minister for Defence, Edi Sudradjat, said that talks were already under way with Britain for the purchase of 18 more Hawk fighters. "The political change in Britain will not affect our negotiations," he said. He was right.

Today, replace Indonesia with Saudi Arabia and East Timor with Yemen. British military aircraft – sold with the approval of both Tory and Labour governments and built by the firm whose promotional video had pride of place at Labour's 2017 party conference – are bombing the life out of Yemen, one of the most impoverished countries in the world, where half the children are malnourished and there is the greatest cholera epidemic in modern times.

Hospitals and schools, weddings and funerals have been attacked. In Ryadh, British military personnel are reported to be training the Saudis in selecting targets.

In Labour's current manifesto, Jeremy Corbyn and his party colleagues promised that "Labour will demand a comprehensive, independent, UN-led investigation into alleged violations … in Yemen, including air strikes on civilians by the Saudi-led coalition. We will immediately suspend any further arms sales for use in the conflict until that investigation is concluded."

But the evidence of Saudi Arabia's crimes in Yemen is already documented by Amnesty and others, notably by the courageous reporting of the British journalist Iona Craig. The dossier is voluminous.

Labour does not promise to stop arms exports to Saudi Arabia. It does not say Britain will withdraw its support for governments responsible for the export of Islamist jihadism. There is no commitment to dismantle the arms trade.

The manifesto describes a "special relationship [with the US] based on shared values … When the current Trump administration chooses to ignore them … we will not be afraid to disagree".

As Jeremy Corbyn knows, dealing with the US is not about merely "disagreeing". The US is a rapacious, rogue power that ought not to be regarded as a natural ally of any state championing human rights, irrespective of whether Trump or anyone else is President.