United state alongside Australia and Sweden in Group D was able to score just one goal in 10 qualifying matches while the African champions draw against two time world champion.
“We qualified as African champions and that should worry the other teams in our group,” Okon said.
Nigeria is the only African team to have played in all Fifa Women’s World Cup tournaments since 1991 but they have never gone past the quarter-final stage, a feat they achieved at the 1999 edition.
Okon believes the side he now has at his disposal is better equipped than in previous years to handle the threat in their group and provide a challenge of their own at the showpiece event to be played from 6 June to 5 July.
“We have a young squad with strong mentality and our opponents definitely respect us because we are not under pressure.” he said.
“Our ambition is to surpass the quarter-final stage of 1999 and my players are well aware that the pressure is on the supposed big teams to deliver.
“Our squad is very strong, boasts of players who have played on a big stage, they fight for a common cause – and I think this mentality is important to us.
“If we play our game, stay focused and with God on our side we will shock the world.”
Okon was appointed coach of the senior women’s side after leading Nigeria’s U-20 team to a fourth place finish at the U-20 World Cup in Japan in 2012.