Foster is now relishing his involvement with Roy Hodgson's England as he prepares for World Cup qualifiers against San Marino on Friday and Montenegro four days later.
"I'm buzzing," he told the Albion website.
"It's been two years since I was last involved so it's nice, and to come straight back in with qualifiers will make it a little bit more special.
"They are two important games and two games we need to pick points up from.
"I've got a different mindset because I've changed my focus to England now."