Smisek made her debut for
Germany on 13 April 1995 as a substitute for
Patricia Brocker, also scoring her first goal in an 8–0 home victory against
Poland. She was included in the
1995 FIFA Women's World Cup squad led by manager
Gero Bisanz, her first major tournament, where she managed only one appearance, as a replacement for
Maren Meinert in the
0–2 final defeat against
Norway. Smisek also represented Germany at the
1996 Summer Olympics, but never played once as Germany were eliminated in the group stage. Under new manager
Tina Theune, she established herself in the first team, playing in all of Germany's matches in the
1999 FIFA Women's World Cup until their 2–3 deficit against the
United States in the quarter-finals, scoring against
Mexico. Smisek also appeared in the
UEFA Women's Euro 2001, where she scored against
Russia, and
Norway, to finish as joint top goalscorer with three goals alongside compatriot
Claudia Müller, and help Germany to their fifth title. ==Career statistics==