England next face Chile in the World Cup after their draw with Iraq.
Ward-Prowse told FATV: "All of the lads are upbeat. Obviously we were disappointed waking up this morning as we lost the chance to get three points.
"We're a fairly new group together and when we first met at Carden Park in May you could tell then that it was a good group.
"There's a lot of togetherness, a really good team spirit but that result last night will only make us stronger."