We lost sight of one of the cardinal maxims of guerrilla war: the guerrilla wins if he does not lose. The conventional army loses if it does not win.

-Kissinger, HenryAlfred
  On the Vietnam War. In Foreign  Affairs,  Jan.

Insurrectionöby means of guerrilla bandsöis the true method of warfare for all nations desirous of emancipating themselves from a foreign yoke.

-Mazzini, Giuseppe
  General Instructions for the Members of Young Italy, section 4.