A 2004 reggae song recommends there be no more weapons of mass destruction.
A weapon of mass destruction refers to weapons that could kill and harm many people, or do significant damage to buildings and landscapes. Nuclear, biological and chemical weapons are specific examples of “WMDs.”
The term carries meaning beyond being actual weapons, but as political rhetoric. It may be used to bolster support against a political enemy, that pre-emptive action such as military engagement must be taken to halt any perceived or real threat from WMDs.
Most infamously in 2003, the USA invaded Iraq and deposed their leader Saddam Hussein, on the pretence of this understanding of WMDs. Intelligence reports later proved to be false about WMDs in Iraq.
Countries continue to monitor each other for the production of facilities capable of producing WMDs.