Europe should impose further sanctions on Russia in response to its “malign” behaviour around the world, Jeremy Hunt will say on his first visit to the US as foreign secretary this week.
He will call on the EU to replicate Washington’s “comprehensive” response to the Salisbury nerve agent attack.
The US is set to ban Russian exports of security-sensitive goods following the poisoning of Sergei and Yulia Skripal.
Europe must engage with Russia but be “blunt” about its actions, he will say.
In a speech in Washington, he will say Moscow must be aware that there is a “serious price” to be paid for repeated violations of the established rules of international conduct.
He will cite “foreign attempts” to manipulate elections as one of the reasons behind the decline in confidence in Western democratic systems.
But he will say governments in Europe must do more to “get their houses in order” by addressing the causes of economic and social resentment associated with the growth of populism, such as the squeeze on living standards and concerns over immigration.
During a three-day trip to the US, Mr Hunt – who succeeded Boris Johnson in July – will meet his counterpart, Secretary of State Mike Pompeo, as well as addressing the United Nations Security Council about the international fight against the Islamic State group and other Islamist terror groups.
The visit comes as the US is set to ratchet up the pressure on Moscow over the poisoning of former Russian agent Mr Skripal and his daughter in the Wiltshire city in March.
The US State Department is expected to confirm its intention to proceed with a ban on defence exports and certain government financial assistance in response to the attack, which it has blamed on Moscow.
US officials are also expected to warn that further sanctions – including wider curbs on exports and US bank credit to the Russian government – could be imposed after three months without assurances that Russia is no longer using chemical and biological weapons and is complying with inspection and verification procedures.
The UK said it is highly likely that the Russian government, which has denied all involvement, was to blame for the attacks – which prompted a wave of expulsions of Russian diplomats from the UK and across Europe.
Mr Hunt will say the Salisbury attack was part of a pattern of behaviour from Russia, including the annexation of Crimea and its support for the Assad regime in Syria, which made the world “more dangerous”.
The US president, Donald Trump, was asked in an interview with Reuters whether he would consider lifting sanctions on Russia.
“I’m not considering it at all, no,” he said. “I would consider it if they do something that would be good for us. But I wouldn’t consider it without that.”
Although not expected to go into details, Mr Hunt will call on the EU to “ensure its sanctions against Russia are comprehensive and we truly stand shoulder to shoulder with the US”.
“That means calling out and responding to transgressions with one voice whenever they occur, from the streets of Salisbury to the fate of Crimea,” he will say.
“Those who do not share our values need to know that there will always be a serious price to pay if red lines are crossed – whether territorial incursions, the use of banned weapons or, increasingly, cyber-attacks”.
The Foreign Office said Mr Hunt wanted to ensure existing sanctions on associates of President Putin and state-backed entities were having their intended effect and to galvanise efforts to extend them where needed.
Mr Hunt will warn of multiple economic and security threats to the international order and say the once “rock-solid” transatlantic alliance would be further undermined if opponents are “in any doubt about our red lines”.
Arguments over the funding of Nato and global trade have soured relations between the US and Europe since Donald Trump’s election last year.
While accepting arguments of Russia’s potential culpability for the Salisbury attacks, Mr Trump has nevertheless pressed for better relations with President Putin and cast doubt on evidence of Russian interference in the 2016 US presidential election.
In his speech, Mr Hunt will say popular support for open democracies and economies in the West cannot be taken for granted and will suggest many of the issue championed by Mr Trump must be addressed.
“We are putting our heads in the sand if we blame social media by pretending that some of the causes of that resentment are not real – whether caused by the decline in real incomes for many Americans and Europeans, dislocation caused by changes in technology or the identity concerns of many voters caused by immigration.
“Expressing such resentment is an affirmation and not a rejection of the core democratic instinct that a society must work for all its citizens – so the sooner we address those concerns the stronger our democracies will be.”