Defence Secretary of UK Ben Wallace said this on Thursday in Estonia
He outlined a previously-announced package of military support for Ukraine, including sending Challenger tanks, and added detail on the types of missiles Britain would supply.
Read more: Brimstone Missiles Supplied to Ukraine Are Twice as Good as Expected
Wallace stated: "Today I can say we’re also going to send another 600 Brimstone missiles into theatre which will be incredibly important in helping Ukraine dominate the battlefield".
He said the UK will be working with the US and others “to make sure that this package is put in Ukraine in the right way”.
Wallace was meeting with other defence ministers at the Tapa army base in Estonia.
Wallace also said Western unity against Russian President Vladimir Putin's invasion remained strong and that allies were "in it for the long haul".
"If President Putin is banking on us getting bored this year, he's wrong. We will plan for this year and next year and the year after and beyond," he said.
Read more: Britain Сonfirms Sending Ukraine Brimstone II Missiles