The Estrada Doctrine suggests that upon the establishment of "de facto" governments in other countries, Mexico did not support giving recognition because it is considered a degrading practice. By injuring the sovereignty of other states, recognition puts them in a vulnerable position because their internal affairs can be judged by other governments, which assume a critical attitude when deciding about the legality and legitimacy of foreign governments. Mexico was itself harmed because of the practice, as it was difficult to obtain recognition of its independence.