Wikipedia
Istishhad
Istishhad is the Arabic word for " martyrdom", "death of a martyr", or "heroic death". In recent years the term has been said to "emphasize... heroism in the act of sacrifice" rather than " victimization", and has "developed...into a military and political strategy", often called "martyrdom operations". One who martyrs themselves is given the honorific shahid.
Since the 1980s militant Islamists have challenged the traditional Islamic rules of warfare in an attempt to justify suicide attacks despite clear contradictions to established Islamic laws.