At the summit, Sir Keir is expected to underline the threat Russia poses to the UK and NATO.

The government said NATO had sent fighter jets to intercept Russian aircraft approaching allied airspace more than 700 times and that Russian military activity in UK waters had increased by 30%.

Sir Keir is expected to emphasize that while NATO did not seek confrontation with Russia, it must be ready to defend all its allies.

Foreign Secretary Yvette Cooper said: “With a high-precision strike capability, the UK and our allies will be able to hit high-value military targets and the logistical engines that power militaries, deterring any aggressor and strengthening our mutual security.

“In Ankara we are sending a clear message to [Russian] President [Vladimir] Putin; “NATO is stronger, more European and ready to defend our citizens against the long-term threat posed by it and the Russian state.”

Ukrainian President Volodymyr Zelensky used a summit speech on Tuesday to urge Ukraine’s allies to deliver air defense systems it urgently needs to protect it from escalating Russian attacks.

Ukraine has been stepping up its own drone and long-range missile attacks against Russia, hitting oil refineries and military targets there and causing major fuel shortages and power outages.

“The Ukrainian Armed Forces have demonstrated that the effective use of long-range systems can have revolutionary impacts on the battlefield, giving the Armed Forces the ability to degrade enemy forces far behind the front line,” Number 10 said.

“Long-range Ukrainian attacks, such as those against key logistics centers, have significantly impacted Russia’s ability to sustain its offensives.”

Kremlin spokesman Dmitry Peskov said on Tuesday that Russia, which invaded Ukraine in 2022, would closely follow the Ankara summit.

He said that no new weapons kyiv would obtain from NATO could prevent Russia from continuing its military operation in Ukraine until its objectives are achieved.

“In the context of preparations for this summit we have heard many statements about our country,” Peskov told reporters.

“To our regret, these were not statements about constructive engagement and dialogue, but rather statements of a confrontational nature.”

“The solution to this conflict by political and diplomatic means remains preferable” for Russia, Peskov added.