Advocaat, who at 78 will become the oldest manager in World Cup history, resigned in February for family matters. But with his daughter's health reportedly improving, Advocaat has decided to come back and lead Curacao into its first-ever World Cup appearance.

Curacao, with a population of just over 150,000, is the smallest nation to qualify for the World Cup.

Advocaat, nicknamed the "Little General", replaces Fred Rutten, who stepped down to enable Advocaat's comeback. Rutten managed Curacao during two March friendly matches, losing to China (5-1) and Australia (5-1).

Goal.com reported that Curacao's player council met with Gilbert Martina, Curacao Football Federation's president, after the matches and said the team preferred Advocaat over Rutten. Atilay Uslu, owner of Corendon Airlines, a major sponsor, threatened to pull more than 1 million Euros of annual funding if a coaching change wasn't made, the report said.

"There must not be a climate that damages healthy professional relationships within the team or staff," Rutten said in a statement. "Therefore, resigning is the right decision. Time is of the essence and Curacao must move forward. I regret how things turned out, but I wish everyone the best."

Curacao plays its first World Cup match 14 June in Houston against Germany.