Bentt, who is 18 years old, is eligible to play for the USA, England, and Belgium due to his background.
He recently played for Belgium's U19 team in two friendly matches.
In a statement to the Brentford website, Bentt expressed his enthusiasm for representing Belgium.
He mentioned that Belgium was the country he supported during the World Cup and the Euros, and he felt proud to play for them.
Bentt noted that representing Belgium made him feel like he was representing the entire country and his own personal identity.
He also appreciated how welcoming the Belgian team was to him, being a newcomer to the international scene.