- For Ceyda: A Turkish mum's fight for justice for murdered daughter
- Bestselling 'Woman of Substance' author Barbara Taylor Bradford dies aged 91
- Equity markets mostly on front foot, as bitcoin rally stutters
- Ukraine drones hit Russian oil energy facility: Kyiv source
- UN chief slams landmine threat after US decision to supply Ukraine
- Maximum term demanded in French rape trial for husband who drugged wife
- Salah feels 'more out than in' with no new Liverpool deal on table
- Pro-Russia candidate leads Romanian polls, PM out of the race
- Taiwan fighter jets to escort winning baseball team home
- Le Pen threatens to topple French government over budget
- DHL cargo plane crashes in Lithuania, killing one
- Le Pen meets PM as French government wobbles
- From serious car crash to IPL record for 'remarkable' Pant
- Equity markets mostly on front foot, bitcoin rally stutters
- India crush Australia in first Test to silence critics
- Philippine VP Duterte 'mastermind' of assassination plot: justice department
- Asian markets mostly on front foot, bitcoin rally stutters
- India two wickets away from winning first Australia Test
- 39 foreigners flee Myanmar scam centre: Thai police
- As baboons become bolder, Cape Town battles for solutions
- Uruguay's Orsi: from the classroom to the presidency
- UN chief slams landmine threat days after US decision to supply Ukraine
- Sporting hope for life after Amorim in Arsenal Champions League clash
- Head defiant as India sense victory in first Australia Test
- Scholz's party to name him as top candidate for snap polls
- Donkeys offer Gazans lifeline amid war shortages
- Court moves to sentencing in French mass rape trial
- 'Existential challenge': plastic pollution treaty talks begin
- Cavs get 17th win as Celtics edge T-Wolves and Heat burn in OT
- Asian markets begin week on front foot, bitcoin rally stutters
- IOC chief hopeful Sebastian Coe: 'We run risk of losing women's sport'
- K-pop fans take aim at CD, merchandise waste
- Notre Dame inspired Americans' love and help after fire
- Court hearing as parent-killing Menendez brothers bid for freedom
- Closing arguments coming in US-Google antitrust trial on ad tech
- Galaxy hit Minnesota for six, Orlando end Atlanta run
- Left-wing candidate Orsi wins Uruguay presidential election
- High stakes as Bayern host PSG amid European wobbles
- Australia's most decorated Olympian McKeon retires from swimming
- Far-right candidate surprises in Romania elections, setting up run-off with PM
- Left-wing candidate Orsi projected to win Uruguay election
- UAE arrests three after Israeli rabbi killed
- Five days after Bruins firing, Montgomery named NHL Blues coach
- Orlando beat Atlanta in MLS playoffs to set up Red Bulls clash
- American McNealy takes first PGA title with closing birdie
- Sampaoli beaten on Rennes debut as angry fans disrupt Nantes loss
- Chiefs edge Panthers, Lions rip Colts as Dallas stuns Washington
- Uruguayans vote in tight race for president
- Thailand's Jeeno wins LPGA Tour Championship
- 'Crucial week': make-or-break plastic pollution treaty talks begin
Five scenarios for Ukraine after Russia invasion
Russia's invasion of Ukraine on February 24 shocked the world but President Vladimir Putin shows no sign of pulling back.
Here are possible scenarios for the weeks and months ahead, according to Western government sources and think-tank experts.
1) Military quagmire
Ukrainian forces have resisted Russia's invasion so far, defeating an attempt by paratroopers to seize the capital in the opening days and keeping control over major cities such as Kharkiv and Mariupol.
Although Russia claims it has full air superiority, Ukraine's air defences around the capital Kyiv and in other areas appear to be degraded but still working, Western officials say.
"That's caused them so many problems," a European source told reporters on Friday on condition of anonymity.
Vast numbers of Ukrainians have also joined territorial defence units and there remain questions about the morale of the Russian army and its logistical support.
Backed by Western intelligence and a flow of anti-tank and surface-to-air missiles, Ukraine's troops might be able to hold out in the capital and force some sort of military stalemate.
Deepening Western sanctions that are strangling the Russian economy might force Putin to change his calculations.
"The West could leverage some sanctions to push Putin to abandon his core war aim of decapitating the Ukrainian government and installing a pro-Russian puppet," wrote Samuel Charap from the RAND Corporation, a US think-tank, this week.
Pressure from Beijing, increasingly a Kremlin ally under President Xi Jinping, might also be necessary.
2) Domestic Russian change
Russian President Vladimir Putin is keeping a close eye on domestic dissent.
A crackdown on independent media and foreign news providers has removed alternative sources of information about the war, cementing the grip of the ultra-loyal Russian state media.
Nevertheless, small anti-war demonstrations have taken place in cities from Saint Petersburg to Moscow, with at least 6,000 people arrested, according to local rights groups.
There are also signs of cracks in the ruling elite, with some oligarchs, MPs, and even private oil group Lukoil calling openly for a ceasefire or an end to fighting.
Though not seen as likely at this stage, the possibility of Putin being brought down in a popular backlash or even a palace coup is not being ruled out.
"His personal security is very good and it will be very good until the moment it isn't," said Eliot A. Cohen from the Center for Strategic and International Studies, a Washington-based think-tank.
"That's happened numerous times in Soviet and Russian history."
3) Russian military success
Given Russian troops' superior weapons, air power and devastating use of artillery, Western defence analysts expect them to continue grinding forward.
A huge convoy of vehicles has been assembled outside of Kyiv ahead of what is expected to be an assault on the capital.
French President Emmanuel Macron concluded that "the worst is still to come" after a call with Putin on Thursday morning.
Putin wants "to seize control of the whole of Ukraine", an aide told reporters afterwards.
But even if Russian troops depose Ukrainian President Volodymyr Zelensky and overrun Ukraine's resistance elsewhere, Putin would then face the challenge of occupying a nation of 40 million.
"Getting into a city is not the same as holding it," wrote British warfare historian and King's College London professor Lawrence Freedman on Substack this week.
4) Conflict spreads
Ukraine has a border with four former Soviet states that are now members of the US-led NATO military alliance, which considers an attack on one member to be an attack against all.
Putin's nostalgia for the Soviet Union and his pledge to protect Russian minorities -- which are found in the Baltic States -- has left an open question about his territorial ambitions.
After Ukraine, some speculate that Putin might also be eyeing Moldova, a former Soviet state wedged between Ukraine and Romania.
Few expect Putin to openly attack a NATO member, which would run the risk of nuclear war, but other provocations are possible.
"Neutral Sweden is keeping a watchful eye on Russia's intentions towards the Gotland island in the Baltic Sea," wrote analyst Bruno Tertrais for the Montaigne Institute, a French think-tank.
Charap warned of the "risks of an accident, incident, or miscalculation that spirals into a NATO-Russia war", with anything from a stray missile to cyberattacks providing the spark.
5) NATO confrontation
This was always thought to be impossible because of the nuclear weapons' mutual guarantee of destruction.
The US and Russia have opened up a so-called "deconfliction line" over which they can exchange military information quickly to reduce the chances of a misunderstanding.
The same method is employed in Syria, where US and Russian forces have been active on opposite sides of the country's civil war since 2015.
But Putin has ordered Russia's nuclear deterrent forces onto high alert and Foreign Minister Sergei Lavrov has warned that "World War Three can only be a nuclear war".
Western analysts say such warnings should be taken as posturing to deter the United States and Europe from considering ideas such as a "no-fly zone" over Ukraine.
"These announcements are predominately addressed to a Western audience to make us fear and our societies insecure," said Gustav Gressel, an expert on missile defence at the European Council on Foreign Relations.
"They use nuclear deterrence as a form of information operation. There's no substance."
O.Krause--BTB