osb/database/seeders/CountryTableSeeder.php

<?php

namespace Database\Seeders;

use Illuminate\Database\Seeder;

use App\Models\{Country,Currency};

class CountryTableSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
	public function run()
	{
		$o = new Country;
		$o->id = 61;
		$o->name = 'Australia';
		$o->two_code = 'AU';
		$o->three_code = 'AUS';
		$o->active = TRUE;

		$oo = Currency::where('iso_code','AUD')->firstOrFail();

		$oo->countries()->save($o);
	}
}