Lynne Tracy, who represented the US in Moscow from 2023 to 2025, told the BBC that being ambassador to Russia was probably the hardest assignment of her career. This was reported by Qazaqyia.kz citing BBC News.

US, UK and European diplomats once played a crucial role in Russia, defusing tensions even at the worst moments of the Cold War. But now, deemed "unfriendly" by President Vladimir Putin's government, Western ambassadors are under constant surveillance, isolated and increasingly cut off from the country they were sent to understand, as the war in Ukraine grinds on through its fifth year.

The BBC has spoken to five diplomats who have served in Russia since it launched its full-scale invasion. They compare current pressure levels to the Cold War era - when Western embassies were monitored through physical surveillance, listening devices hidden inside gifts, and "spy dust" - a near invisible chemical agent used to track officials.

Hundreds of Russian diplomats were expelled from countries in Europe and the US after the war began in 2022. Moscow responded in kind, declaring hundreds of Western diplomats persona non grata and leaving many embassies short-staffed.

Tracy's 30-year career took her to countries like Pakistan, where she survived an armed attack in 2008. But she says that even under constant physical threat, her posting in Peshawar was, in a sense, easier than Russia. "There, I still felt that there were things within my control. What made Moscow more difficult were the high levels of uncertainty," she recalls. The constant pressure from Russian counterintelligence was the primary source of such uncertainty, she says.

Russian diplomats in the West also complain of such unfair treatment. But according to the diplomats who spoke to the BBC, the scope and tactics of Moscow's intelligence services are far greater.

"Expect listening devices, expect cameras in every single room of your house," a former European diplomat says of the warning he received before leaving for Moscow.

Another ex-ambassador says they were forced to dismiss two Russian employees after Moscow's domestic security service, the FSB, tried to recruit them, demanding that they report on everything going on at the diplomatic mission. The pair told the embassy instead, who let them go - "otherwise, they could have faced some sort of criminal prosecution".

Meanwhile, Russians who would ordinarily build relationships with diplomatic staff - such as those working in academia and culture - are also being intimidated into avoiding contact with Western officials.

One former ambassador says his guests were once "tailed" by FSB agents right up to the doors of the embassy.

Just this June, guests invited to the British ambassador's residence in Moscow for the King's birthday celebrations said they had been harassed by pro-Kremlin activists and state-media journalists, and then questioned by the police. One of the guests says he has since declined several invitations to events at Western embassies out of fear.

Not everyone can deal with the pressure. One former ambassador says "constant paranoia" has driven a number of officials to quit their jobs. Even after leaving Russia himself, he adds, he was looking over his shoulder for months.

In the immediate aftermath of the invasion, there were discussions across Europe about whether to recall ambassadors or stop working in Russia altogether, says former French ambassador Pierre Lévy. He remembers calling Paris immediately to say pulling their envoys would be a mistake, feeling that the worse relations became, the more important they would be.

The invasion quickly transformed their work, says another ex-European ambassador; the co-operation required for their usual efforts on bilateral relations, trade and joint projects was now impossible.

And for those who stayed in Russia, the war left them with a host of new priorities beyond supporting their own citizens and companies. Firstly, countries viewed as unfriendly by Moscow still wanted at least some channel of communication with Russian officials to get an accurate picture of what was happening inside the country. But they also had to protect their staff and keep their embassies functioning.