Arnold has started all three group matches for England Under-17s in Denmark, and had the privilege of leading out the Young Lions for the first time against Sweden on Thursday.
The Liverpool defender says his time in Scandinavia has been invaluable, and it will stand him in good stead for the future.
ENGLAND v DENMARK
Nordic U17 Tournament
Third place play-off
11am, Saturday 2 August 2014
Mosevej Stadium, Kolding, Denmark
Speaking to TheFA.com at the team hotel in Kolding, Arnold said: “I’ve really learnt how to conduct myself both on the pitch and around the hotel.
“With the U16s I went to the Nike Tournament last December in Florida, but this week has been a much bigger challenge. The matches have been a lot more intense, the games are a lot tighter and we are learning that any mistakes will be punished.
“As we move up the age groups with England I’d say that the games definitely get harder, and the standard of opposition is always improving.”
The trip has been hugely memorable for the 16-year-old, but one moment in particular will stay with him forever.
“It was my first time captaining my country against Sweden. It was quite nerve-wracking, but I was so honoured to do it and be picked by the manager for such a vital role in the team.
It's been a great experience this week playing for my country and even better to captain the side against Sweden. 🇬🇧 pic.twitter.com/aGuCkO34uZ— Trent Arnold (@trentaa98) August 1, 2014
“I found out the night before. Dan Micciche pulled me aside and told me, and I was quite surprised and didn’t expect it. He said I’d been playing well and that I had deserved it for my work throughout the week.”
Arnold continued: “I was straight on the phone to my parents, who were over the moon for me. It was disappointing to lose the game, but we’ll bounce back and leading my country out is something no one will ever be able to take away from me.”
The Young Lions end their spell in Denmark with a third place play-off match against Denmark at 11am – a game Arnold and his team-mates are desperate to win.
“We started the week on a high, but the last result against Sweden obviously left us disappointed. We don’t want to go home like that, we want to go home with some momentum.
“It will be a great occasion to play the host nation, hopefully in front of a big crowd, and we are determined as a group to end the week with a win and seal third place in the tournament.”