Can peace proposals that come from countries with strong ties to one side of a conflict be trusted to be fair and unbiased?

People can lie, although I'm sure the US government is well-aware of that. A country who previously had strong ties with one side of a conflict most likely should not be trusted with peace proposals, unless there is an economic reason behind it.

I think that there's so much trust that would have to go into this.

The UN and their attempts at peace have either been laughable, or veto'd by a country with close ties to one side of current conflicts. It is despicable, and there needs to be more accountability on the world stage.

I believe that peace proposals that come from countries with a strong tie to one side of a conflict should not be trusted to be fair and unbiased because they are coming specifically from countries with one strong tie to one side of the conflict.