Stick to one's guns

Capitan Beaulieu-de-Long and his first lieutenant were both killed, several guns dismounted, and many of the [French frigate] crew killed and wounded. . . . Nevertheless the French stuck bravely to their guns, while the flame of the cannonade illuminated the scene beneath the canopy of smoke.

Ronald had stuck to his guns and refused me to the last.

"I intend to marry, of course," replied Tuppence. "That is, if"—she paused, knew a momentary longing to draw back, and then stuck to her guns bravely—"I can find some one rich enough to make it worth my while."

The President . . . stuck to his guns on that, not repeating any of his recent admissions that there had been "miscalculations" in planning for the war.

Sarri has been questioned for his decision to use Jorginho as the hub of his team while pushing Kante into a more advanced role out on the right - why have the player many regard as the finest holding midfield player in world football and not utilise him there? Sarri has stuck to his guns and this was a game - and performance by Kante - that added significant weight to his argument.