Could the convoy have changed Singapore's defence?

The convoy counterfactual stays bounded: it does not claim that the reinforcements would reverse the Pacific campaign. The added fighters, anti-aircraft weapons, field artillery, and experienced officers could have multiplied Singapore's defensive strength and bought time for Commonwealth forces to organize. The destination of a logistics package can matter as much as the weapons themselves. In the war-game example, the artillery and air power strengthen the defence of the Singapore Strait without removing the wider operational problems facing the garrison.