The ex-Lyon boss takes over a club that bought four players from Ligue 1 in the summer.
The 49-year-old Frenchman was speaking to AVTV after signing a three-and-a-half-year deal on Monday to replace the sacked Tim Sherwood at Villa, who sit bottom of the Premier League with just four points from 11 games.
After losing star men Fabian Delph and Christian Benteke in the summer, as was as the on-loan Tom Cleverley, the club brought in 12 new faces as part of an analytics-based recruitment drive, including four from Ligue 1.
None of Jordan Ayew, Jordan Amavi, Idrissa Gana or Jordan Veretout started Monday night’s clash with Tottenham Hotspur, though, as Garde watched from the stands at White Hart Lane as caretaker manager Kevin MacDonald’s side fell to a 3-1 defeat.
The former Lyon boss is now preparing for his first game in charge against Manchester City on Sunday at Villa Park, and given his previous experience of coaching in the French top-flight, most expect the aforementioned quartet to be a big part of his plans.
However, Garde, whose three-year reign at cash-strapped Lyon between 2011 and 2014 saw him win the French Cup and achieve a top three finish in the league, stresses that his focus is on the entire squad rather than the summer imports from across the Channel.
“What I want to say is that we are in England,” he told AVTV. “We need to adapt and settle in this new area. This is the first thing they have to do because they are not playing for a French team anymore.
“They will probably feel better [with a French manager] but my focus is not on the French players, it is on the team’s results.
“I won’t care more about the French players than I will with the English, Spanish or African ones. The team is a whole team and we all need to be together."
Along with the summer buys from Ligue 1, Villa also have French-born duo Rudy Gestede and Charles N'Zogbia at their disposal, while Swiss centre-back Philippe Senderos and ex-Valenciennes midfielder Carlos Sanchez can speak French as well.
Garde still does not want to hear his native tongue around the club, though, adding: "They have to learn English quickly because I don’t want anyone speaking French in the dressing room. It is very important that he we understand each other but it is also important that the English players speak slowly sometimes to begin with.
“Everybody has to make an effort to be a big team because when you have such qualities in the dressing room you should normally be doing better. It’s a huge task but everybody has to be focused on that.”
Lyon’s tight finances meant Garde also developed a reputation for bringing through youth during his time at the Stade de Gerland and the former Arsenal midfielder is looking forward to the chance to do the same at Villa in the long-term.
However, with the claret and blues on a run of seven straight top-flight defeats and four points adrift of 17th position, he stresses that now is not the time to be searching for the next Jack Grealish.
“I know that Villa have been very good with their academy, but at the moment the priority is on getting good results for the first-team,” he added. “I don’t want to spend my time on everything just now.
“The urgency is on getting results, and if later on I can bring some experience I had with Lyon, it would be my pleasure to do that.”