INVASION
On 24 February 2022, the world awoke to news that the unthinkable had happened. After months of sabre rattling, Russian President Vladimir Putin ordered tens of thousands of troops into Ukraine on what he calls a "special military operation", expecting them to sweep into the capital, Kyiv, in a matter of days.
Now, 12 months on. there is no sign that the conflict is anywhere close to an end.
On the first day of the invasion, 52-year-old teacher Olena Kurylo stood outside a hospital after she was injured when Russian forces bombed the eastern Ukraine town of Chuguiv.
Hundreds of people cross over a badly damaged bridge to escape the town of Irpin in the early days of the war.
As air raid sirens sound over Kyiv, a mother tends to her baby in the bomb shelter of the paediatric ward of Okhmatdyt Children's Hospital on 29 February 2022.
BUCHA
Bucha lay on the Russians' path to Kyiv. After they withdrew, the level of destruction and loss of life there meant it became synonymous with the brutality of the invading forces, as hundreds of civilians were killed, some shot with their hands tied behind their backs.
An image taken in April 2022 shows the extent of the destruction Bucha suffered during the Russian occupation.
Tetiana Ustymenko weeps over the grave of her son, who was buried in the garden of her house in Bucha, on 6 April 2022
Firefighters put out a blaze in Ukraine following a Russia drone strike (Credit: Ukrainian State Emergency Service)
EXODUS
Millions of people fled Ukraine in the first few weeks of the war creating a massive logistical nightmare at border crossings with neighbouring countries.
Huge numbers have also been internally displaced within Ukraine, as cities such as Mariupol and Kherson were reduced to rubble.
An evacuation train to Poland from Lviv: On 28 February 2022, a baby is passed up during frantic scenes as people board to leave.
A family say goodbye to a young man at the central train station in Odesa on 6 March 2022.
Nina Gonchar sits on a bed inside a bunker in Bohorodychne village in Kramatorsk, Donetsk region, on 13 September 2022.
SIEGE OF MARIUPOL
Russia captured the key Black Sea port city of Mariupol in May after a three-month siege.
The siege ended when the last Ukrainian defenders, holed up inside the giant Azovstal steelworks, surrendered.
A boy looks out a bus window as people evacuated from Mariupol arrive on buses in Zaporizhzhia on 8 May 2022.
A relative of a Ukrainian soldier killed during the siege of Mariupol reacts as his portrait is displayed in an exhibition - 'Azov Regiment - Angels of Mariupol' - in Kyiv on 14 October 2022.
An aerial view shows a residential building damaged by shelling in Izyum, Kharkiv region.
A man and his cat shelter in a basement after Russian troops shelled Ukraine's second largest city, Kharkiv, on the 11th day of the invasion on 6 March 2022.
A Ukrainian gunner sits in his 2S1 Gvozdika on the front line in southern Ukraine on 8 October 2022.
13-year-old Volodymyr pictured in hospital on 19 March 2022 - his family's car was caught in gunfire between Russian and Ukrainian troops in Kyiv, on 26 February. His father was killed and his mother was injured.
Blue and yellow Ukrainian national flags on the graves of soldiers at a cemetery in Kyiv who were killed during the war.
UKRAINIAN ADVANCES
As the conflict turned into a grinding war of attrition, the United States and Europe gave Ukraine increasingly powerful and longer-range weaponry and used sanctions to try to hamper Russia's military machine.
A Ukrainian serviceman of the 93rd brigade covers his ears while firing a French 120mm rifled towed mortar towards Russian positions in Bakhmut on 15 February 2023.
Family members grieve during the funeral of 44-year-old Maksym Kropyva, killed in action in Kykolaiv on 8 November
Ukrainian soldier Andrii Wolf Vovk stands amid snow-covered trenches, in which the trees have been shredded by months of Russian shelling, along the frontline in the southern Donbas area of Druzhba.
MISSILE BARRAGE
In October, Russia turned its sights to Ukraine's energy infrastructure, which it targets with repeated barrages of missile and drone strikes.
The attacks leave millions without power and heat for hours at a time in the middle of winter.
Kyiv - Lyudmyla Mozgova and her husband Valentyn Mozgovy, who depends on a ventilator, and who must adapt to power cuts triggered by Russian strikes on Ukrainian energy infrastructures.
The heavily damaged monastery buildings in the village of Bohorodychne, Donetsk region, which was retaken by Ukrainian forces.
A man falls to the ground during a drone strike on Kyiv on 17 October 2022.
Relatives grieve over the coffin of Ukrainian sub lieutenant, former journalist and writer Ihor Teryokhin, who died near the city of Kherson in January 2023.
THE FUTURE?
Children hide at a bomb shelter during air raid siren on 17 January 2023 in Zaporizhzhia.
An aerial photograph shows destroyed residential buildings in the village of Bohorodychne, Donetsk region.
