We have information that in Algeria, for example, tele-explosive mines, that is, mines exploded by radio at great distances from the point where they are located, are being used today against the French colonial power.
The technique of lying in ambush along roads in order to explode mines and annihilate survivors is one of the most remunerative in point of ammunition and arms. The surprised enemy does not use his ammunition and has no time to flee, so with a small expenditure of ammunition large results are achieved.
As blows are dealt the enemy, he also changes his tactics, and in place of isolated trucks, veritable motorized columns move. However, by choosing the ground well, the same result can be produced by breaking the column and concentrating forces on one vehicle. In these cases the essential elements of guerrilla tactics must always be kept in mind. These are: perfect knowledge of the ground; surveillance and foresight as to the lines of escape; vigilance over all the secondary roads that can bring support to the point of attack; intimacy with people in the zone so as to have sure help from them in respect to supplies, transport, and temporary or permanent hiding places if it becomes necessary to leave wounded companions behind; numerical superiority at a chosen point of action; total mobility; and the possibility of counting on reserves.
If all these tactical requisites are fulfilled, surprise attack along the lines of communication of the enemy yields notable dividends.
A fundamental part of guerrilla tactics is the treatment accorded the people of the zone. Even the treatment accorded the enemy is important; the norm to be followed should be an absolute inflexibility at the time of attack, an absolute inflexibility toward all the despicable elements that resort to informing and assassination, and clemency as absolute as possible toward the enemy soldiers who go into the fight performing or believing that they perform a military duty. It is a good policy, so long as there are no considerable bases of operations and invulnerable places, to take no prisoners. Survivors ought to be set free. The wounded should be cared for with all possible resources at the time of the action. Conduct toward the civil population ought to be regulated by a large respect for all the rules and traditions of the people of the zone, in order to demonstrate effectively, with deeds, the moral superiority of the guerrilla fighter over the oppressing soldier. Except in special situations, there ought to be no execution of justice without giving the criminal an opportunity to clear himself.
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