Group 1: Andorra

Group 2: San Marino

Group 3: Kosovo

Group 4: Gibraltar

Image source, Uefa

Here is a reminder of the teams to be drawn into four groups of four for Europe's lowest-ranked nations.

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Ex Arsenal and Belarus international Alexander Hleb is on stage now. Belarus are in League D and he said: "Hopefully in the future we'll be in League C."

He's going to be helping with the draw now along with Giorgio Marchetti from Uefa.

We're getting our first glimpse of the shiny new Nations League trophy on stage here.

Aleksander Ceferin the Uefa president has carried it on stage.

"I think it's very good that everyone can be promoted and relegated in the Nations League," he said. "We also have complaints the smaller teams have to play bigger teams and they never qualify for the European Championship, so hopefully this will change that."

Image source, Reuters

As we count down to the draw, we are now being treated to a Uefa explainer live from their draw headquarters in Lausanne, complete with a moody choir providing the first rendition of the Nations League anthem.

Not quite as catchy as the Champions League one, but impressive nonetheless.

Republic of Ireland coach Martin O'Neill is already here with his assistant Roy Keane is already here.

O'Neill has signed a contract extension to remain as Republic of Ireland manager until 2020 - maybe inspired by the Nations League excitement!

The 65-year-old looked set to replace the sacked Mark Hughes at Stoke City before rejecting a return to Premier League management.

O'Neill, who replaced Giovanni Trapattoni as Republic manager in 2013, will be in charge for the Euro 2020 campaign.

Image source, Getty Images

Matchday 1: 6–8 September 2018

Matchday 2: 9–11 September 2018

Matchday 3: 11–13 October 2018

Matchday 4: 14–16 October 2018

Matchday 5: 15–17 November 2018

Matchday 6: 18–20 November 2018

Nations League Finals draw: early December 2018

Nations League Finals: 5–9 June 2019

Uefa EURO 2020 play-off draw: 22 November 2019

Uefa EURO 2020 play-offs: 26–31 March 2020

Below are the teams for League D, including Gibraltar, the lowest-ranked side in Europe.

One of these teams is guaranteed a spot at Euro 2020 through the new play-off system, which is a seismic change in the qualification process.

Image source, Uefa

Now we have a reminder of the teams - including Scotland - which will be drawn into one group of three teams, and three groups of four teams in League C.

Scotland are ranked third highest in this league - so it could represent a good chance of reaching Euro 2020 should they fail in the traditional qualifying route.

Image source, Uefa

Here are the teams which will be drawn into four groups of three teams in League B, including Wales, Republic of Ireland and Northern Ireland.

Image source, Uefa

The draw, which will be taking place shortly in Uefa headquarters in Lausanne, Switzerland, will start with the groups in League D.

It will then progress through the Leagues so stick with us.

England, Northern Ireland, Republic of Ireland, Scotland and Wales will be involved from Group C onwards.

These are the teams that will be drawn into four groups of three teams in League A, including England. These are the nations with the highest Uefa ranking and the only ones that can qualify for the inaugural Nations League finals in June 2019.

Image source, Uefa

In short, which teams fall into specific Nations League groups.

We already know which teams are in each League, but now we will find out which teams they will play.

Each team will play each other home and away.

The Nations League finals will be in June 2019, hosted in one of the country’s which qualifies for the final. Before that, Nations League matches start in September, October and November 2018 – basically the traditional international break.

In among all that will be the Euro 2020 qualification process.

Image source, Uefa

The theory is that it should offer more competitive matches between nations ranked together more closely, and a Nations League finals every two years in between World Cups and European Championships.

But the big prize is that lower-ranked nations will get a play-off spot guaranteed for Euro 2020 where they will avoid higher-ranked teams.

Scotland for example, are ranked third in League C, so should have a decent chance of reaching their first major tournament since the 1998 World Cup should they not qualify via the traditional route of Euro 2020 qualifying. Given that they will be hosting four Euro 2020 games at Hampden Park, the prize could be a large one.

Uefa’s new national team competition replaces most friendlies with competitive matches, allowing nations to play against equally ranked teams.

Uefa’s 55 teams will be split into four Leagues (A-D) based on their Uefa ranking, with four groups in each League. The four group winners of the top-ranked League A qualify for the Uefa Nations League finals in June 2019.

For the remaining sides there is promotion and relegation to play for, and a potential back-door route to Uefa EURO 2020.

With us, so far?

So - bear with us because this is a touch complicated.

Here's some homework before the draw gets underway.

It's actually fairly simple in the end. Promise.

Image source, Uefa