Adding to Cedars 2 points above.
The UN's Universal Declaration of Human Rights (UDHR):
http://www.un.org/en/documents/udhr/
Article 18:
" Everyone has the right to freedom of thought, conscience and religion; this right includes freedom to change his religion or belief, and freedom, either alone or in community with others and in public or private, to manifest his religion or belief in teaching, practice, worship and observance. "
Article 20:
"Everyone has the right to freedom of peaceful assembly and association."
This declaration was first adopted on Dec 10th 1948 as a consequence of WWII.
The 60th anniversary was in 2008 and the UN had a year long schedule of events around the world to reaffirm their commitment to the values of the UDHR and to disseminate information about the Declaration.
The UN has been very supportive of WT when it comes to upholding their right to worship, preach and other things. For example, this was written by the UN in specific reference to JW's who were being prosecuted by Greece:
"resolution 1989/59 of 8 March 1989 of the Commission on Human Rights of the United Nations, reaffirmed inter alia in 1991 (resolution 1991/65 of 6 March 1991) and in 1993 (resolution 1993/84 of 10 March 1993), which recognizes "the right of everyone to have conscientious objections to military service as a legitimate exercise of the right to freedom of thought, conscience and religion as laid down in article 18 of the Universal Declaration of Human Rights as well as article 18 of the International Covenant on Civil and Political Rights" (para. 1) and which recommends to Member States "with a system of compulsory military service, where such provision has not already been made, that they introduce for conscientious objectors various forms of alternative service" (para. 3) which "should be in principle of a non-combatant or civilian character, in the public interest and not of a punitive nature" (para. 4)."
WT is very fortunate to have such a committed organisation willing to defend WT around the world, to enable WT to practise its' religion in freedom.
Splash.