1) Foolhardiness 2) Rashness 3) Recklessness 
Adventurism is a pejorative term referring to politics or activism that involves reckless or irresponsible behavior or conduct pursued only in the interest of excitement. Adventurism is often used as a criticism against some government`s policies. Countries pursuing foreign wars of dubious merit or which have little chance of success have often b....
[n] - recklessness in politics or foreign affairs
noun recklessness in politics or foreign affairs
defiance or disregard of accepted standards of behavior. · rash or irresponsible policies, methods, or actions, esp. in political or international affairs.