"They're always a very tough team to play," Kohlhase said. "They have powerful pitching - they throw the ball very hard - and like most Canadian sports teams, they try to dominate you physically."
Japan was the other team New Zealand had to overcome on the way to three consecutive world title between 1996 and 2004 - they beat Japan 2-1 in the 2000 final at East London, South Africa.
"Their current coach was the pitcher in that final," Kohlhase said. "They're a very fast team. Japan are beautiful fielders of the ball and quite electric on the base paths.
"They have a lot of lefties, and have very strong pitching and hitting. They'll be a real test."
Argentina are one of the emerging powers in world softball and took out the junior world title at home last year, when New Zealand finished sixth.
"They're like their rugby teams and soccer teams," Kohlhase said. "They're fantastic at home.
"Argentina are a strong softballing nation. They have a couple of outstanding pitchers on the North American circuit and, like Japan, have a lot of lefties."
The 16 teams have been divided into two pools of eight, with the top four progressing to quarter-finals. The other pool is headed by titleholders Australia and four-time champions the United States.
Draw for the world softball championships at Rosedale Park, Auckland, from March 1-10:
Pool A - Australia, United States, Venezuela, Great Britain, Czech Republic, South Africa, Indonesia, Samoa
Pool B - New Zealand, Canada, Japan, Argentina, Philippines, Mexico, Colombia, Netherlands
March 1
9.30am: Great Britain v Samoa
10.30am: Colombia v Philippines
Noon: Indonesia v Czech Republic
1pm: Netherlands v Japan
2.30pm: Venezuela v South Africa
3.30pm: Argentina v Canada
6pm: Opening ceremony
7.30pm: NZ v Mexico
7.30pm: United States v Australia
March 2
11am: Australia v Indonesia
Noon: Samoa v United States
1.30pm: South Africa v Czech Republic
2.30pm: NZ v Colombia
4pm: Venezuela v Great Britain
5pm: Canada v Philippines
6.30pm: Netherlands v Mexico
7.30pm: Japan v Argentina
March 3
11am: Mexico v Canada
Noon: South Africa v United States
1.30pm: Indonesia v Samoa
2.30pm: NZ v Japan
4pm: Philippines v Argentina
5pm: Great Britain v Australia
6.30pm: Colombia v Netherlands
7.30pm: Czech Republic v Venezuela
March 4
11am: Argentina v Netherlands
Noon: Great Britain v Indonesia
1.30pm: Czech Republic v United States
2.30pm: Philippines v Mexico
4pm: Japan v Colombia
5pm: South Africa v Australia
6.30pm: Venezuela v Samoa
7.30pm: NZ v Canada
March 5
11am: Australia v Venezuela
Noon: Mexico v Colombia
1.30pm: Czech Republic v Samoa
2.30pm: United States v Indonesia
4pm: Great Britain v South Africa
5pm: Japan v Canada
6.30pm: Philippines v Netherlands
7.30pm: NZ v Argentina
March 6
11am: South Africa v Indonesia
Noon: Venezuela v United States
1.30pm: Japan v Philippines
2.30pm: Great Britain v Czech Republic
4pm: Canada v Colombia
5pm: Australia v Samoa
6.30pm: Argentina v Mexico
7.30pm: NZ v Netherlands
March 7
11am: Great Britain v United States
Noon: Indonesia v Venezuela
1.30pm: Colombia v Argentina
2.30pm: South Africa v Samoa
4pm: Netherlands v Canada
5pm: Australia v Czech Republic
6pm: Mexico v Japan
7.30pm: NZ v Philippines
March 8
Playoffs
March 9
Playoffs
March 10
Medal games