Meanwhile, the progress of Ukraine’s landmark cross-border offensive has slowed considerably in the past week.

Sudzha – the largest settlement Ukraine has captured inside Russia – has a population of around 5,000, which is three times less than that of Novohrodivka, the settlement Russia captured earlier this week.

On Tuesday, Ukraine’s commander in chief said that Kyiv’s forces had taken 1,294 sq km (500 sq miles) of territory inside Kursk, including 100 settlements – and captured 594 Russian soldiers in the process.

These figures should be treated with caution, but they are no doubt significant. The question is whether they will justify the potential losses on Ukraine’s eastern frontline.

“One of the objectives of the offensive operation in the Kursk direction was to divert significant enemy forces from other directions, primarily from the Pokrovsk and Kurakhove directions,” Gen Syrskyi said on Tuesday.

But that objective appears to have failed. Russian forces have not been redeployed from the Pokrovsk frontline.

On the contrary they’ve been strengthened by additional troops and their advance has quickened.