As Duke continues to stockpile wins onto Mike Krzyzewski's all-time record of 989, it will host the academy where Coach K won his first.
The fourth-ranked Blue Devils host Army on Sunday with the Black Knights looking for their first 6-0 start since 1976-77 under Krzyzewski.
The Black Knights' winning streak is the longest under coach Zach Spiker, who would move past Krzyzewski on the Army all-time wins list with a victory Sunday.
"I played there. I coached there," Krzyzewski said. "I have unbelievable respect for those kids, what they've done and what they're building. They're getting back to being a winning program.
"They're on a mission. That will be a really good, hard game for us at an unusual time."
Krzyzewski won 73 games as head coach at Army from 1975-1980 before departing for Duke, where he has 916 victories.
That level of success has carried full force into this season for the Blue Devils (6-0).
Freshmen Jahlil Okafor (17.2 points and 7.8 rebounds per game) and Justise Winslow (14.0 ppg, 5.2 rpg) are off to good starts to their careers, with senior Quinn Cook (16.0 ppg, 4.3 assists per game) directing the potent offense. The Blue Devils' 90.0-point average is among the nation's five best, and their 33.2-point average differential is third.
Okafor led the way with 24 points on 12-of-14 shooting as Duke routed Furman 93-54 on Wednesday.
"I'm really happy with our team," Krzyzewski said. "Our guys played hard for 40 minutes. They played unselfishly. There wasn't a lull."
Perhaps Duke's only concern is the shooting of freshman guard Tyus Jones, who has scored just eight points over his last three games despite averaging 26 minutes. Jones has contributed 5.3 assists per contest this season, but is 1 for 15 from the floor in the last three.
Jones, though, has been making an impact defensively with a team-high 11 steals.
"Something we've been focusing on for the first six games leading up to this is how we play defensively," said Okafor, who has a team-best 10 blocks. "That's the one thing that we can control, so we're just going to keep building on that."
The Black Knights, though, have been winning largely thanks to a disruptive defense that's forcing an average of 18.4 turnovers - among the top 15 in the nation.
Army has not faced a ranked team under Spiker, who took over in 2009-10. The Black Knights have not beaten Duke since Feb. 4, 1939.
Duke last played Army in 2002, with the Blue Devils winning 101-53.