At the time, he became a staunch rival of his fellow PNŢ member Virgil Madgearu.
Although Cubas was generally viewed to be easily manipulated by Oviedo's influence, his impeachment would mean Argaña, one of Oviedo's staunchest political rivals, would become president.
Their commander, Mike Aris, said he was collecting infiltrators loyal to Samir Geagea, General Aoun's staunchest Christian rival, in order to avoid revenge killings.
He is the brother-in-law of Benigno Aquino, Jr, the staunch rival of former Philippine dictator Ferdinand Marcos.
The same goes for Union Carbide, a leader in process technology, and Exxon, a catalyst pioneer - two companies that are staunch rivals in basic plastics.
The society was for many years a staunch rival to the Bohemian Kokoon Arts Club.
That sports network is ESPN's staunchest rival in cable television.
Kilkenny, the reigning All-Ireland champions and staunch local rivals of Tipp, provided the opposition in the subsequent All-Ireland final and were installed as the firm favourites.
Maradona plays for Naples in the Italian first division, a staunch rival of the two clubs that play in Meazza Stadium, AC Milan and Inter-Milan.
The ground had shifted enough for the country's major cigarette makers - staunch rivals in a shrinking domestic market - to join forces in disclosing the list of ingredients, information each company once swore was a trade secret.