Oliver Conway

If we do not show this, the whole world will lose faith and stop helping the Ukrainian people, the Ukrainian army.

That is why we are doing this, to prove we're still strong.

A staff officer called Simon Potapich shows me where Ukrainian forces are still defending in the north of the city.

So there's a map here, a digital map, which has Ukrainian positions around Bukrovsk.

And there are a few red spots, targets that they're going to hit here where Russian forces are present.

But you can still clearly see from this map that Ukrainian troops are still in the city in numbers.

We're told hundreds.

The focus here is on the fight, not peace talks.

But a Latvian volunteer, the unit's deputy commander, is willing to vent some frustration.

The battle for Pokrovsk has been going on for more than a year now.

How much longer can Ukraine hold on?

It is losing ground.

The city is in ruins.

But Ukraine needs proof of its resolve at this critical time.

Jonathan Bale reporting from eastern Ukraine.

Coupang is South Korea's most popular online shopping platform with millions of customers.

Now its headquarters in the capital, Seoul, has been raided as part of a police investigation into a recent data breach believed to have affected almost two-thirds of the population.

Jake Kwon in Seoul told us more about the raid and the data leak.

This is the largest data breach in South Korean history.

This is Coupang, South Korea's version of Amazon.