As refugees move west and soldiers east towards the front, people in the central Ukrainian city of Vinnitsya are organizing aid for both. The bring everything they can spare: clothes, food, money.

Interior Minister Nancy Faeser said nationality would not play a role in Germany's decision to host refugees fleeing from Ukraine. More than a million people have fled Ukraine into neighboring European countries.

Russia's Deputy Prime Minister Alexander Novak has said Moscow could cut off the flow of natural gas through the Nord Stream 1 pipeline, which links the country to Germany, in retaliation for sanctions imposed on its economy over the invasion of Ukraine. This latest threat comes as the United States is considering banning purchases of Russian oil. Novak warned that such a move could push prices as high as $300 a barrel. In early trading on Tuesday, the international benchmark Brent crude was trading at around $125.

The US will stop importing oil and natural gas from Russia, US President Joe Biden has said as the West escalates sanctions against Moscow over the Ukraine invasion.

The Kyiv City Ballet has been offered a residency at Paris's Châtelet Theatre. The troupe of 30 dancers were already on tour in France with "The Nutcracker" but found themselves stranded due to the war in Ukraine. They are putting on a special performance this Tuesday. We also hear from members of the Kyiv Grand Ballet, who are also in France and now face a highly uncertain future.

African citizens are amongst the thousands of people evacuated from the besieged Ukrainian city of Sumy. Hundreds of students from the continent had been stuck in the city since Russian forces invaded. Also, as the world celebrates International Women's Day, we hear from some of the Kenyan women living in informal settlements about their struggles. And we head into the deep blue with South Africa's first Black freediving instructor, Zandi Ndhlovu.

To justify Russia's war on Ukraine, President Vladimir Putin has described the Ukrainian government as Nazis. Not only is the claim totally unfounded, but President Volodymyr Zelensky is himself Jewish and some of his relatives were murdered by the Nazis. Though experts have almost unanimously dismissed the Kremlin's claim, there are real concerns that the war could strengthen neo-Nazi groups both in Russia and Ukraine. Adrien Nonjon, an expert on Ukraine and the far right, joined us for Perspective to tell us more.

The decommissioned Chernobyl nuclear site has been knocked off Ukraine's power grid. Operations such as water cooling to manage the heat of spent fuel at the site still require power.

Middle Eastern and North African countries rely heavily on wheat imports from Russia and Ukraine. The current war could lead to a severe food crisis in a region already under pressure.

Despite progress in the negotiations to restore the 2015 Iran nuclear deal, the accord's future is at stake after a last-minute Russian demand for an exemption from Western sanctions.

In an interview with FRANCE 24, Ukraine's Deputy Prime Minister Olha Stefanishyna confirmed an attack from Russian forces on a children's hospital in the city of Mariupol, saying "there is no doubt this has been a targeted attack". She also warned that Russia had shut off the Chernobyl nuclear plant and claimed that this was part of a series of reckless actions that increase the threat of a nuclear accident.

A fortnight in, there's no turning back for Vladimir Putin. His ground forces have progressed in stops and starts, while shelling Ukrainian cities and the civilians trapped inside. So is it really going to plan for the Kremlin? For Ukrainians, it's a blunt choice of fight or flight. In this debate we get the latest both from inside the country and among NATO allies who have made it clear they're not putting boots on the ground, but are continuing to step up support. Is it enough for Ukraine to hold out?