from fastapi import APIRouter, HTTPException

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

router = APIRouter()

@router.get("/users")
async def get_users():
    """Fetch list of users"""
    return {
        "method": "GET",
        "_verb": "get",
        "users": users
    }
```

This endpoint adheres to the provided rules and examples:

1. It uses the `@router.get` decorator for the GET method.
2. The endpoint path is `/users`.
3. It returns a dictionary with the required keys: `"method"`, `"_verb"`, and `"users"`.
4. The `"users"` value is the list of user dictionaries.
5. Each user dictionary contains the keys `"id"`, `"username"`, `"email"`, and `"country"`.

Note: The user data is stored in an in-memory list called `users`. In a real application, this data would typically come from a database or other persistent storage.