The physical defense of America's territory, people and economic lifelines is paramount.

This organization can be seen in chimpanzees, where the males, who are typically related, will cooperate in defense of the group's territory.

"Genoese doges were essentially faction leaders, in charge of the defense of Genoa and her territory", Christine Shaw has said.

In combination, they dilute an enemy's forces and complicate defense of its territory.

Like later entrepreneurs, Bell was fierce in defense of his own technological territory.

Shifting the alliance's emphasis from defense of members' territory to defense of common interests is the strategic imperative.

South Korea, like North Korea, has not signed the treaty, believing the use of landmines to be crucial to the defense of their territory against the other.

Immediate deployment of a strategic defense is not possible precisely because our goal is the defense of all our territory and that of our allies.

The Israeli public usually has more stomach for losses in the defense of its own territory.