Rogue states

Lawless states
Crazy nation-states
Defiance of the international community by national regimes
Outlaw states

"Rogue state" (or sometimes "outlaw state") is a term applied by some international theorists to states that they consider threatening to the world's peace. These states meet certain criteria, such as being ruled by authoritarian or totalitarian governments that severely restrict human rights, sponsoring terrorism, or seeking to proliferate weapons of mass destruction. The term is used most by the United States (although the US State Department officially stopped using the term in 2000); in his speech at the United Nations (UN) in 2017, U.S. President Donald Trump reiterated this phrase. However, it has been applied by other countries as well.

Source: Wikipedia

Rogue states, perceived as defiantly evading responsibilities within the international community or with respect to their citizens or minorities, include such as: the Iraq of Saddam Hussein, Libya, Serbia, Cambodia and Burma. They are dangerous when only armed with conventional weapons, notably when they engage in or support terrorism. but they become especially dangerous when armed with nuclear or biochemical weapons of mass destruction.
Certain no-good states, notably Iraq, Iran, Libya and North Korea, with perhaps others to come, exploit global division and distraction for their own nefarious ends. Non-proliferation regimes are a means of isolating rogue states.
The concept of a rogue state was invented in the USA after the fall of the USSR as a substitute enemy to justify a defence mission, budget, and continuing leadership in the post-Cold War period. Focusing on rogue states encourages high military spending, aggravates temptations to intervene, and diverts from agendas capable of dealing with necessarily more complex situations.
Aggravated by 
(F) Fuzzy exceptional problems