LT42
Amps
One of the key things in matters such as this though, is for various strategic and PR related reasons a government is simply not able to be open and transparent with the public as to the what and why of their exact involvement in certain wars.
If the benefits of such an involvement were to be clearly explained (eg cost-benefit calculation of access to resources, destabilisation of a hostile regime etc.) then voters would be better informed and perhaps more would subsequently support the decisions more - but it would also clearly inform their enemies as to their plans and generate further animosity and backlash from those hostile to them.
You might claim this to be “undemocratic” but it’s unavoidable - countries will have classified information which requires being kept from the public.