Highland Council leader Margaret Davidson said the Press and Journal’s Fight for Fort George campaign had helped delay the closure of the barracks.
She heard confirmation of the news in a phone conversation with Scottish Secretary David Mundell a few hours before yesterday’s  Commons statement.
She said: “The P&J did terrific research on the cost of running Fort George.
“We updated the economic impact study and I would really like to acknowledge the key role played by the P&J in raising the profile in this and also the help that (SNP MP) Drew Hendry gave in opening the door with the Ministry of Defence to speak to us because I believe it’s at least given us time to adjust.
“It could have just been ‘we’re closing next week’ but they’re not.”
Councillor Davidson, who had talks at various stages with key players in governments north and south of the border, said the MoD’s decision was disappointing but that the 16-year cushion gave the area time to consider its options for the future.
She said: “It can be nothing but hugely disappointing that they’re closing down the barracks and the presence of the Army in the Highlands.
“I think we all realise how symbolic and important Fort George is, because it is the Army’s presence here.
“However, as a result of the clear economic case, they are giving us this 16 years to adjust and, frankly, many things can happen in 16 years.
“We’re going to start planning for the future and see what sustainable solutions we can find.”
Mrs Davidson said the Scottish secretary recognised the importance, symbolically, of the garrison to the Highlands and that he had pledged a direct line to officials to help the region plan ahead.