On 4 December 2012 Poland became the 161st state to ratify the 1997 Convention on the Prohibition of the Use, Stockpiling, Production and Transfer of Anti-personnel Mines and on Their Destruction (Anti-personnel Mine Ban Convention or APMBC).
"Poland Ratifies the APMBC,"
Journal of Conventional Weapons Destruction: Vol. 17
, Article 20.
Available at: http://commons.lib.jmu.edu/cisr-journal/vol17/iss1/20