The Gunners secured their second win of the season in style on Saturday when thrashing Southampton 6-1 and they take on Manchester City next weekend after a Champions League date with Montpellier.
Vermaelen feels there is new-found confidence in the squad and says there should be no question that they can beat anyone. "City are the champions from last year so it won't be easy. We have to go there and play our own game - I am confident we can get a result there," he said.
"The team has a strong bond in the dressing room and outside as well. It feels good. "All of the players, especially the guys who came in, look good. Everybody plays with a lot of confidence and that is good. "We have to stay focused because there are a few hard games coming up. "We have to play away at Montpellier on Tuesday and then we have Manchester City so it is not going to be easy. It is good for confidence, we are happy today but Tuesday is another game. "The Champions League is always different so that will be a test as well, especially away from home.