Under the original precious metals standard, both gold and silver backed the dollar. This will almost certainly be the case going forward, as it was for thousands of years of human history with the historical records showing silver:gold being about 10:1 in value for all of time (similar to the total amount mined of each).

In the current market, the real value of silver relative to gold is much greater than its market value. The bankers have been using the silver/gold ratio as the primary market manipulator since 1870(ish). It was then that they began forcing the silver backing out to increase their wealth. The bankers held most of the gold, and the silver was what people actually used. By separating them in the currency they were able to increase gold relative to silver thereby increasing their holdings while simultaneously decreasing the wealth of the population. This was the beginning of the "1%" movement.

Silver and gold are intimately tied. Assuming we win this war, we will almost certainly have a Precious Metals standard, not a gold standard.