Final answer:
An IET Soldier can contribute to a fundraising event through proper channels after receiving permission from superiors, ensuring contributions are voluntary and in line with military regulations.
Step-by-step explanation:
An IET (Initial Entry Training) Soldier who wishes to voluntarily contribute personal funds to a fundraising event can do so through appropriate channels that respect the principles and regulations of military fundraising activities. This includes adhering to guidelines that prevent any kind of compulsory donations and ensuring that any contributions are purely voluntary. According to past practice, permission from a superior, such as a Chief Pay-master, might be required to organize such a fund. The student should note that, in the context of the military and government, there are constitutional stipulations such as 'To raise and support Armies, but no Appropriation of Money to that Use shall be for a longer Term than two Years', which ensures fiscal responsibility and oversight regarding the allocation of funds.