Only three out of eight Russian Iskander-K cruise missiles launched at Ukraine on the night of 31 July were shot down. This raised questions about why Ukraine’s air defense, usually effective against Kalibr and Kh-101 missiles, failed to destroy most of them, Defense Express reports.

Explosions in Kyiv and a major air raid alert

The key reason is the element of surprise, say the military experts from Defense Express.

“Today’s launches of ‘Iskander-K’ were carried out from Russia’s Kursk Oblasy, practically right at the border, so there was very little time to react and deploy countermeasures,” the analysis states.

The land-based Iskander launchers are harder to detect than ships launching Kalibr missiles or bombers carrying Kh-101s, since those require more flight time and are detected by intelligence before launch.

“He will risk everything in Ukraine”: Putin may be preparing for even harsher war in Ukraine after Trump’s ultimatum

What is known about these missiles? 

Iskander-K is a general term for cruise missiles launched from the Iskander tactical missile system. These include the 9M728 (R-500) with a range up to 500 km and the 9M729 with a range up to 1,500 km. Both have a 480 kg warhead and fly at speeds up to 900 km/h.

This year, Ukraine’s Main Intelligence Directorate announced Russia’s approximate missile production rates. Currently, Russia can produce about 300 cruise missiles per month, including 20-30 Iskander-K. 

Despite US President Donald Trump’s new ultimatum for Russia, giving it only ten days to end the war in Ukraine, the Kremlin confirmed that Russia has no intention to stop its aggression, UNIAN reports. 

“We took Trump’s statement about a shortened timeline for resolving the situation in Ukraine and his disinterest in contacts into account,” says Dmitry Peskov, Russian President Vladimir Putin’s spokesperson, adding that Russia acts “in the interest of its own security.”

No talks, no meeting: Trump–Putin summit off the table

Peskov has also ruled out any upcoming meeting between Putin and Trump, while lamenting the stagnation in US–Russia relations.

“Russia would like to see more momentum, but that requires signals from both sides,” he says.

Peskov’s statement is not entirely truthful in light of Trump’s actions in 2025. The US president made a number of concessions to Russia on the path to peace.

• He pressured not only Moscow but also Kyiv and was considering recognizing Crimea as part of Russia. 
• He delayed military aid to Ukraine, which limited Kyiv’s defensive capabilities.
• At the same time, Trump lifted Russia out of international isolation by having conversations with Russian authorities, including Putin, which did not happen under former President Joe Biden. 

Trump’s ultimatum: Ten days or sanctions

On 14 July, Trump threatened 100% tariffs on Russia and secondary sanctions on countries buying its oil unless Putin halts his attacks on Ukraine within 50 days. This could impact China, India, and Brazil, Russia’s main economic allies. 

As Trump threatens sanctions on buyers of Russian oil, India prepares to switch suppliers to avoid fallout

By 28 July, the US president had slashed its first deadline.

“I’m not so interested in talking [to Putin] any more. Every time I think it’s going to end, he kills people,” Trump claimed.