Nov 2013 – Feb 2014Key event
PoliticalLeadership change
Euromaidan
Mass protests against a last-minute turn away from EU association end with the pro-Russian president fleeing the country.
Why it mattersThe trigger of everything that follows: Moscow concludes Ukraine is drifting out of its orbit and moves within weeks.
Feb – Mar 2014Key eventCrimea
Territorial changeMilitaryPolitical
Annexation of Crimea; war begins in Donbas
Russia seizes and annexes Crimea in a near-bloodless operation, then ignites a proxy war in Donetsk and Luhansk that kills ~14,000 over eight years.
Why it mattersThe first forcible annexation in Europe since 1945 — and the template Moscow believed would work again at scale in 2022.
Feb 2015Key event
Diplomatic
Minsk II freezes the war without resolving it
A ceasefire framework brokered by France and Germany reduces intensity but is never implemented by either side.
Why it mattersSeven years of unresolved status become the pretext architecture for the full-scale invasion.
24 Feb 2022Key eventKyiv axis
MilitaryTerritorial change
Full-scale invasion
Russia invades on multiple axes expecting rapid collapse. The drive on Kyiv fails within six weeks.
Why it mattersThe largest interstate war in Europe since 1945 begins; the failure at Kyiv converts a planned regime change into a long attritional conflict.
24 – 26 Feb 2022Key eventHostomel / Kyiv axis
Military
Battle of Hostomel airport
VDV air-assault forces seize the airport outside Kyiv to open an air bridge for a rapid decapitation of the capital; the landing is contained and the airfield rendered unusable.
Why it mattersThe day the short war died — with no air bridge there was no coup de main, and Russia's elite airborne arm began its long attrition as line infantry.
Apr 2022Key eventKyiv region
HumanitarianPolitical
Bucha atrocities revealed
Russian withdrawal from the Kyiv region exposes the killing of civilians in Bucha and neighbouring towns, documented by journalists, investigators and satellite imagery.
Why it mattersForecloses the early-war window for a negotiated settlement, hardens Western opinion, and begins the war-crimes documentation architecture that shadows every later diplomatic track.
14 Apr 2022Key eventBlack Sea
MilitaryMaritime
Sinking of the cruiser Moskva
Ukrainian Neptune anti-ship missiles sink the Black Sea Fleet flagship — corroborated by US officials after initial Russian denial. The largest warship lost in combat since 1945.
Why it mattersA navy without capital ships sinks the enemy flagship with a domestic missile: the opening act of the sea-denial campaign that would eventually push the fleet from the northwestern Black Sea, and a lasting blow to the fleet's air-defence umbrella and prestige.
Feb – May 2022Key eventMariupol
MilitaryHumanitarian
Siege and fall of Mariupol
The defence of Mariupol ends at the Azovstal steelworks after months of encirclement; the city is largely destroyed.
Why it mattersRussia gains its land bridge to Crimea; the siege becomes the war's defining humanitarian catastrophe and a symbol on both sides' information fronts.
Jul 2022Key eventOdesa
EconomicDiplomatic
Black Sea grain corridor opens
A UN- and Turkey-brokered arrangement restarts Ukrainian maritime grain exports; after Russia's 2023 exit, Ukraine forces its own corridor open by pushing back the Black Sea Fleet.
Why it mattersGlobal food prices, Black Sea insurance markets and Ukraine's export economy all hang on this corridor — the war's clearest conflict-to-market channel.
26 Sep 2022Key eventBaltic Sea
EnergyEconomic
Nord Stream pipelines sabotaged
Underwater explosions destroy three of the four Nord Stream pipeline strings in the Baltic. Attribution remains publicly contested years later.
Why it mattersThe physical end of the Russo-German gas era, and the arrival of critical infrastructure sabotage as a live category of European risk — priced into energy markets ever since.
Sep 2022Key event
PoliticalTerritorial changeLeadership change
Annexation declarations and partial mobilization
Moscow declares four partly-occupied regions annexed and orders its first mobilization since 1945, triggering an exodus of draft-age men.
Why it mattersRussia formally forecloses compromise on the occupied territories and reveals that its professional army alone cannot sustain the war.
8 Oct 2022Key eventKerch Strait
MilitaryEconomic
Kerch bridge struck
A blast collapses road spans of the bridge linking Russia to occupied Crimea — the flagship infrastructure of the 2014 annexation.
Why it mattersDemonstrates that Crimea's logistics are reachable, and triggers the retaliatory strategic campaign against Ukraine's power grid two days later.
Oct 2022 →Key eventNationwide
EnergyHumanitarian
Strategic campaign against Ukraine's grid begins
Massed missile and Shahed-drone salvos against power infrastructure open a recurring seasonal campaign to break civilian endurance through winter darkness and cold.
Why it mattersTurns the electrical grid into a front line and interceptor stocks into a strategic resource — the air-defence economics that still shape every winter.
Sep – Nov 2022Key eventKharkiv / Kherson
MilitaryTerritorial change
Kharkiv and Kherson counteroffensives
Ukraine retakes thousands of square kilometres in the northeast, then forces Russian withdrawal from Kherson city — the only regional capital Russia captured.
Why it mattersThe high-water mark of Ukrainian battlefield momentum, and the origin of Western expectations that the 2023 offensive would repeat it.
Jun 2023Key event
Leadership changeMilitaryPolitical
Wagner mutiny
The Wagner Group seizes Rostov-on-Don and marches on Moscow before standing down; its founder dies in a plane crash two months later.
Why it mattersThe most serious internal challenge to the Russian state in decades — and the reason Wagner's successors were folded under Ministry of Defence control.
Jun – Nov 2023Key event
Military
Southern counteroffensive falls short
Ukraine's Western-equipped push toward the Azov coast fails against deep fortifications and minefields; positional attrition sets in.
Why it mattersEnds the theory of a decisive armoured breakthrough and resets the war around drones, artillery and endurance.
2023 – early 2024Key eventBlack Sea
MilitaryEconomic
Black Sea Fleet pushed from the western Black Sea
Repeated strikes on Sevastopol and losses to naval drones force Russia to relocate most major fleet units eastward; Ukraine's unilateral export corridor consolidates in the fleet's absence.
Why it mattersSea denial achieved without a navy — naval drones rewrite littoral doctrine, and the corridor's insurance-backed revival restores Ukraine's export economy.
Oct 2023 – Apr 2024Key event
PoliticalWeapons deliveries
Six-month US aid interruption
Congressional deadlock halts the largest military aid pipeline for half a year; Ukrainian units ration shells and interceptors until a new package passes in April 2024.
Why it mattersThe dependence demonstrated in ammunition rationing — and priced into every later calculation on both sides — did more than any battle to define the war's political economy.
2024Key eventDonbas / Kursk (RU)
MilitaryTerritorial change
Avdiivka falls; Kursk incursion
Russia takes Avdiivka at heavy cost and presses in Donbas; Ukraine answers with a surprise incursion into Russia's Kursk region.
Why it mattersBoth sides show they can still surprise — while the front's centre of gravity grinds toward the Pokrovsk axis.
Oct 2024 →Key eventKursk axis (RU)
MilitaryPolitical
North Korean troops deploy to the war
Pyongyang sends combat troops to fight alongside Russian forces on the Kursk axis — the first third-country troop deployment of the war — deepening an exchange of munitions and manpower for technology and hard currency.
Why it mattersThe war internationalises: a European conflict now directly builds the capabilities of an East Asian nuclear state, binding two theatres together.
2025Key event
MilitaryDiplomaticEnergy
Drone-saturated attrition; negotiation probes recur
The front moves slowly around Donbas hubs while both sides race to scale drone and interceptor production; diplomatic probes recur without a settlement either side will accept.
Why it mattersThe war settles into the shape it still holds: industrial attrition, strike campaigns against energy systems, and diplomacy as another front.
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