Prime Minister Boris Johnson has announced a new defensive aid package for Ukraine, including more than 800 additional NLAW (next-generation light anti-armour weapon) anti-tank missiles.
The newly announced military aid follows an earlier package worth £350m, which was in addition to the economic and humanitarian support provided by the UK.
This latest military aid package was designed in consultation with the Armed Forces of Ukraine.
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Alongside NLAW missiles, the Government is sending additional Javelins, loitering munitions, STARStreak air defence systems and more non-lethal aid, including ballistic helmets, body armour and night-vision goggles.
A further announcement was made on establishing an International Donor Co-ordination Centre in Stuttgart, where lethal aid donated by the UK Armed Forces and its international partners can be co-ordinated to distribute it as effectively as possible.
The International Donor Co-ordination Centre was established with servicemen and women from 104 Logistic Support Brigade, following February's first International Donor Conference convened by Defence Secretary Ben Wallace.
The Prime Minister said: "Putin has steeled our resolve, sharpened our focus and forced Europe to begin to rearm to guarantee our shared security.
"Alongside our allies, this military support will bolster Ukraine's efforts to ensure Russia's barbaric invasion fails."
Watch: How UK 'lethal aid' could help Ukraine's defence.
The newly announced aid follows last week's second International Donor Conference, where the UK brought together more than 35 international partners.
Following the first Donor Conference on 25 February, the international community provided 2.5 million items of military weapons and equipment to Ukraine, amounting to more than £1.5bn.
Earlier this week, senior officials from the Ministry of Defence hosted a Ukrainian delegation on Salisbury Plain to demonstrate UK equipment which will contributed to future planned support packages.