At 32, the City right back is one of the senior members of Gareth Southgate’s squad at the Qatar showpiece.
A veteran of the England squad that reached both the 2018 World Cup semi-finals and final of EURO 2020, to date Walker has amassed 72 caps, and he has started England’s last two games in Doha.
Walker is also expected to be a key figure in Saturday’s eagerly anticipated quarter-final clash with France.
But asked whether he had pondered on whether this might prove his last tournament with England, Walker provided a typically forthright response.
“I'm a guy that takes one a game at a time and I don't really look towards the future but I can assure you now that I will go for as long as possible,” the City star asserted.
“As long as I feel that is right for myself, my family and also for the nation and if the manager thinks that's right.
“I feel really fit, I feel strong, I feel energetic I still want to achieve things that I've already achieved and that I still haven't achieved in football and the hunger is still there
“So, I feel great. It's not going to happen anytime soon but, again, who knows in the future what will happen, it is going to come to an end one day isn't it.
“In (terms of EURO) 2024, I’ll be 34 and as long as I'm performing well and I feel good in my body and the manager wants to pick me first and foremost then we'll see.
“But again, I’m really not thinking too far into the future and that's not to bypass the question.
“It’s more, one game at a time which is on Saturday and then we will look and see what happens from there on in.”
With England having reached the last four in Russia and then their first major final in 56 years in the summer of 2021 at the EUROS, many believe the Qatar tournament could present the Three Lions with their best chance yet of emulating the country's 1966 World Cup win.
However, Walker says that though England have developed and matured as a group, the standard of players from the other competing nations has also kicked on from four years ago.
“I feel that the standard of players has probably gone up another level in this tournament,” Walker pointed out.
“I'm not saying that Russia was a bad standard, but I feel that we were an (England) team which was a little bit inexperienced in big game matches.
“OK, we knocked a few walls down in Russia with winning a penalty shoot-out but we were still inexperienced when we got to the semi-final. We scored early and we didn’t really know how to handle that.
“So, I think we're more equipped but I do think that the players from the other teams (are too).
“Look at Morocco for example and how well they played against a very, very good Spain team and how they went and got the result that they wanted.
“We have had a few surprises with Japan and teams like that in this World Cup, so I feel that the standard of players has gone up a little bit more than in Russia.”