Holy See
Practice Relating to the Prohibition of Certain Types of Landmines
In April 1996, immediately prior to the Review Conference of the States Parties to the Convention on Certain Conventional Weapons, Pope John Paul II publicly called for a total ban on anti-personnel landmines. 
Landmine Monitor Report 1999: Toward a Mine-Free World, available at http://www.the-monitor.org/index.php/publications/display?act=submit&pqs_year=1999&pqs_type=lm&pqs_report=holy_see&pqs_section=; “Pope Calls for Total Ban on Landmines”, Reuters News Service, 21 April 1996.
The Holy See strongly criticized the conference when it failed to produce such a ban. 
Landmine Monitor Report 1999: Toward a Mine-Free World, available at http://www.the-monitor.org/index.php/publications/display?act=submit&pqs_year=1999&pqs_type=lm&pqs_report=holy_see&pqs_section=; “Vatican Condemns Decision of Landmine Conference”, Reuters News Service, 6 May 1996.
Subsequently, Pope John Paul II embraced the “Ottawa Process” ” which led to the adoption of a treaty banning anti-personnel landmines. On the eve of the Ottawa Convention on Anti-Personnel Mines coming into force, the Pontiff stated:
I pray to God to give all people the courage to make peace, so that the countries that have not yet signed this important instrument of international humanitarian law do so without delay, and so that they persevere with the work of clearing landmines and rehabilitating the wounded. 
Landmine Monitor Report 1999: Toward a Mine-Free World, available at http://www.the-monitor.org/index.php/publications/display?act=submit&pqs_year=1999&pqs_type=lm&pqs_report=holy_see&pqs_section=; “Pope Urges all Countries to Sign Anti-Mine Treaty”, Reuters News Service, 28 February 1999.