At what age are Akitas aggressive?

Could you elaborate on the aggression tendencies of Akitas at different ages? I've heard varying opinions on when they might become more aggressive, so I'm curious to know if there's a specific age range or trigger that typically precedes this behavior. Is it something that develops early on in their life, or does it come later with maturity? Additionally, are there any strategies or techniques that owners can adopt to help prevent or manage aggressive behavior in their Akitas?