You're listening to the Global News Podcast from the BBC World Service.

Hello, I'm Oliver Conway. We're recording this at 14 hours GMT on Friday the 31st of January.

Uganda says it's boosting defences in eastern Congo, even as advances by Rwandan-back rebels raise fears of a wider war.

We have the latest on the investigation into the

air crash above Washington amid reports of staff shortages in air traffic control and how the far-right

AFD party is breaching the so-called firewall in German politics. Also in this podcast,

it's a wonderful increase in tiger occupancies and it shows that also in this podcast.

It's a wonderful increase in tiger occupancies and it shows that tigers can recover despite the odds of high population pressure, poverty and developmental pressures.

Some good news in India as big cat numbers rebound.

Uganda and Rwanda have a history of involvement in the Democratic Republic of Congo.

Both are accused of backing the M23 rebel group, which is currently on the march in Congo,

and threatening to go all the way to the capital Kinshasa.

Uganda, which, like Rwanda,

shares a border with Congo, says it's boosting its defences inside Congolese territory. For his part,

the Rwandan president, Paul Kagami, has denied supporting the M23 rebels, but that denial wasn't accepted by the Congolese government. Here's its foreign minister to raise

Kaikwamba Wagner. The Democratic Republic of the Congo is being illegally occupied by Rwanda.

This is the clear result of decades of impunity and of not holding President Kagami

accountable for his flagrant violations and his disregard for international law.

The issue that we're looking at right now is a dramatic humanitarian situation.

The main city in North Kivu province, Goma, being occupied by Rondon Defense forces,

with as a puppet the M23, a monster has been created in the Great Lakes region.

Our call to action to all the stakeholders, but in particular, those countries that have

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