"I was woken up by a phone call, and I was told that the war started."
Experts say the EU should look into further energy sanctions while cold weather is not a pressing concern.
Ukraine and Russia are two of the world's top barley exporters.
In the long run, the country's economy will pay a high price.
The Chinese government is opposed to sanctions against Russia and says it will continue to trade with it. But that is not easy in practice.
But international money transfers can be tricky. Ukraine is also accepting help in the form of cryptocurrency.
About 90% of chips are created with lasers that require neon gas. Russia and Ukraine are major exporters of the element.
Logistics, business models and a fear of Russians' reactions are all factors.
In a typical year, they send more than $500 million to family and friends. Now, it's not easy.
Ukraine's finance minister calls for more "severe" Western sanctions against Russia, warning time is of the essence.