United Kingdom Prime Minister Boris Johnson will on Tuesday announce another £300 million ($376 million) in military aid for Ukraine in a remote address to its parliament, his office said Monday.

The British Prime Minister will use the speech delivered via video link, the first by a foreign leader to Ukraine’s Verkhovna Rada since Russia invaded on February 24.

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According to excerpts released by Downing Street, the British PM is expected to say, “When my country faced the threat of invasion during the Second World War, our parliament — like yours — continued to meet throughout the conflict.”

“The British people showed such unity and resolve that we remember our time of greatest peril as our finest hour.”

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“This is Ukraine’s finest hour, an epic chapter in your national story that will be remembered and recounted for generations to come,” Johnson is set to say.

The new military aid, which will include electronic warfare equipment, a counter battery radar system, GPS jamming equipment and thousands of night vision devices, is the latest defensive aid from London.

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Earlier, it announced plans to send Ukraine armoured vehicles able to fire missiles against invading Russian aircraft, on top of previous contributions that have included anti-tank missiles, air defence systems and tonnes of plastic explosives.

Downing Street said that the United Kingdom will also dispatch in the coming weeks heavy lift Unmanned Aerial Vehicle (UAV) systems “to provide logistical support to isolated forces”.

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Meanwhile, more than a dozen new specialised Toyota Landcruisers are headed to Ukraine to help protect civilian officials in the country’s east and evacuate people from frontline areas, it added.

The Kremlin has criticised Western countries as they step up donations of military hardware, saying they risk escalating the conflict and warning Russia has the right to respond to any direct interventions.