"The Court reiterates that in the context of both positive and negative obligations the State must strike a fair balance between the competing interests of the individual and of the community as a whole. However, in both contexts the State enjoys a certain margin of appreciation. Moreover, Art.8 does not entail a general obligation for a state to respect immigrants' choice of the country of their residence and to authorise family reunion in its territory. Nevertheless, in a case which concerns family life as well as immigration, the extent of a state's obligations to admit to its territory relatives of persons residing there will vary according to the particular circumstances of the persons involved and the general interest. Factors to be taken into account in this context are the extent to which family life is effectively ruptured, the extent of the ties in the contracting state, whether there are insurmountable obstacles in the way of the family living in the country of origin of one or more of them, whether there are factors of immigration control (e.g. a history of breaches of immigration law) or considerations of public order weighing in favour of exclusion. Another important consideration will also be whether family life was created at a time when the persons involved were aware that the immigration status of one of them was such that the persistence of that family life within the host state would from the outset be precarious. The Court has previously held that where this is the case it is likely only to be in the most exceptional circumstances that the removal of the non-national family member will constitute a violation of Art.8”. 40. This has been repeated and adopted by the ECtHR as its reasoning in near identical terms in many cases since then: Useinov v The Netherlands, App. 61292/00, ECtHR, decision of11 April 2006 ; Konstatinov v The Netherlands, App. 16351/03, ECtHR, judgment of26 April 2007 , para. 48; M v United Kingdom, App. 25087/06, ECtHR, decision of24 June 2008 ; Omoregie v Norway, App. 265/07, ECtHR, judgment of31 July 2008 , para. 67; Y v Russia(2010) 51 EHRR 21 , para. 104; Haghigi v The Netherlands, App. 38165/07, ECtHR, decision of14 April 2009 ; Nunez v Norway, App. 55597/09, ECtHR, judgment of28 June 2011 , para. 70; Arvelo Aponte v The Netherlands, App. 28770/05, ECtHR, judgment of3 November 2011 , para. 55; Antwi v Norway, App. 26940/10, ECtHR, judgment of14 February 2012 , para. 89; Biraga v Sweden, App. 1722/10, ECtHR, decision of3 April 2012 , paras. 49-51; and Olgun v The Netherlands, App. 1859/03, ECtHR, decision of10 May 2012 , para. 43. "