from fastapi import APIRouter, HTTPException

users = [
    {
        "id": "1",
        "username": "user1",
        "email": "user1@example.com",
        "country": "USA",
        "state": "California"
    },
    {
        "id": "2", 
        "username": "user2",
        "email": "user2@example.com",
        "country": "Canada",
        "state": "Ontario"
    }
]

router = APIRouter()

@router.get("/users")
async def get_users():
    """Fetch list of users"""
    if request.method != "GET":
        raise HTTPException(status_code=405, detail="Method Not Allowed")
    
    return {
        "method": "GET",
        "_verb": "get",
        "users": users
    }
```

This endpoint fetches a list of users from the in-memory `users` list. It checks if the request method is GET, and if not, raises a 405 Method Not Allowed error. The response includes the method, a "_verb" metadata field, and the list of user objects containing id, username, email, country, and state.