Cambodian Visa Question

As I am filling out my Cambodian Visa form there is a question I do not understand. It states "Passport of traveling document is valid for (country)". Is this the country I'm traveling to or traveling from or my country of origin? I will be entering from Vietnam and am an American. Could someone tell me what it means?

I did a search but could not find a specific answer.

Thanks

In your case it's USofA.

Thank you

Hi there, do you mean "countries passport is valid for" ?

The visa form I've used and friends of mine have used is here. It's always been accepted for the visa on arrival, at both airports and overland border crossings. I can't find any question re the country the applicant's passport is valid for.

Thanks for the replys.

I got the visa application from the Cambodian Embassy website. What is in quotes is exactly what was on the application. It just wasn't clear what they were asking for.

I figured since I am going to get the visa before I go I should use their form.

Wording's a bit confusing, but what they're asking for is the country that issued the passport, in your case, the USA.