Theoretically it could be regretted that these latter groups are excluded from the United Nations mandate, but practically it must be admitted that a wider definition would include so many millions of uprooted people as to paralyze the Office and make it quite impossible to work out any program. Moreover, it should be remembered that these groups of refugees are essentially different from the ones which come under the mandate of the Office in that they consist of people who in principle have a country to live in and a government ready to protect them and even to treat them as full citizens.