The UK has provided thousands of weapons to Ukraine's armed forces since Russia's invasion in late February 2022.
Western countries began cautiously, supplying helmets and flak jackets, before then limiting supplies to defensive weapons.
Following Prime Minister Rishi Sunak's announcement that the UK will provide British Army Challenger 2 tanks to Ukraine, Defence Secretary Ben Wallace has announced the "most significant package of combat power to date to accelerate Ukrainian success".
Mr Wallace said the latest package will include:
- A squadron of Challenger 2 tanks with armoured recovery and repair vehicles
- A donation of AS90 guns. This will comprise a battery of eight guns at high readiness and two further batteries at varying states of readiness. This donation will not impact the existing AS90 commitment to Estonia.
- Hundreds more armoured and protected vehicles will also be sent, including Bulldog
- A manoeuvre support package, including minefield breaching and bridging capabilities worth £28m
- Dozens more uncrewed aerial systems worth £20m to support Ukrainian artillery
- Another 100,000 artillery rounds on top of the 100,000 rounds already delivered.
- Hundreds more sophisticated missiles including GMLRS rockets, Starstreak air defence missiles, and medium range
- An equipment support package of spares to refurbish up to 100 Ukrainian tanks and infantry fighting vehicles
Prior to Mr Wallace's announcement, Mr Sunak confirmed the UK will provide Challenger 2 tanks to Ukraine during a call with President Volodymyr Zelensky and that around 30 SA90 self-propelled guns were expected to follow, Number 10 said.
The UK committed £2.3bn in military aid to Ukraine in 2022.
Mr Wallace said that the latest package is an "important increase in Ukraine's capabilities".
"It means they can go from resisting to expelling Russian forces from Ukrainian soil," he added.
"President Putin cannot win but he is equally certain to continue inflicting this wanton violence and human suffering until his forces are ejected from their defensive positions and expelled from the country. That requires a new level of support."
But what has the UK sent so far?
More than 10,000 anti-tank missiles, including Javelin, Brimstone and 5,000 Nlaw (Next-generation Light Anti-tank Weapon) missiles that have so far proved devastatingly effective against Russian armour.
A manoeuvre support package, including minefield breaching and bridging capabilities.
Almost 200 armoured vehicles, six Stormer vehicles fitted with Starstreak launchers, along with hundreds of missiles and maritime Brimstone missiles, plus Multiple Launch Rocket Systems (MLRS).
Advanced Medium-Range Air-to-Air Missile (AMRAAM) missiles, which can shoot down cruise missiles, for use with the US National Advanced Surface-to-Air Missile System (NASAMS) air defence system.
Nearly 100,000 rounds of artillery ammunition, almost 3,000,000 rounds of small arms ammunition, 2,600 anti-structure munitions and 4.5 tonnes of plastic explosives.
More than 82,000 helmets, 8,450 sets of body armour, medical supplies, and more than 5,000 night-vision devices.
25,000 sets of extreme cold weather clothing, 20,000 sleeping bags and 150 insulated tents have been provided.
More than 28 M109 155mm self-propelled guns, 36 L119 105mm artillery guns and ammunition and more than 50,000 rounds of ammunition for Ukraine's artillery.
Over 2,000 uncrewed aerial systems (including hundreds of loitering aerial munitions).
More than 200,000 pieces of non-lethal aid including more than 82,000 helmets, 8,450 sets of body armour, more than 5,000 night-vision devices, rangefinders, and medical equipment.
The UK has also sent six autonomous underwater minehunting vehicles, communications and electronic warfare equipment including GPS jammers, counter-battery radar systems, and night vision equipment.
More than 120 logistics vehicles, 1,000 additional surface-to-air missiles and 125 anti-aircraft guns have been provided.
Counter-drone capabilities have been delivered alongside the dozens of heavy lift UAV (unmanned aerial vehicle) systems that have been provided to give logistical support to isolated forces and more than 120 logistics vehicles.
The MOD announced it will send helicopters to Ukraine for the first time since the war began, in November.
The first of the Sea King aircraft has already arrived in the country.
This list summarises the publicly-announced aid and does not necessarily represent the totality of equipment the UK has granted in kind to Ukraine.