The Vanuatu Teachers Union says retired teachers from Fiji are not welcome to teach in Vanuatu.
The Vanuatu education minister Bob Loughman has signed a Memorandum of Understanding with the Fiji foreign minister, Ratu Inoke Kubuabola, allowing 15 retired teachers from Fiji to teach in Vanuatu secondary schools next year.
The Union's president, Wilfred Leo, says the agreement has come as a surprise, as more than 50 teaching graduates from Vanuatu are yet to secure a posting.
He says Vanuatu also has qualified retired teachers who should be recruited first.
"Those who come to work here are retired teachers and we also have retired teachers here. And we asked the government to show us how well can retired teachers in Fiji teach than our retired teachers that are here."
Wilfred Leo also questions where the Vanuatu government will get the money to pay the salaries of the teachers from Fiji while it still owes salaries to teachers.