an opposing military force

an opposing military force

the use of military aircraft to provide protection against attack by enemy aircraft during ground or naval operations

the use of military aircraft to provide protection against attack by enemy aircraft during ground or naval operations

the use of military aircraft to provide protection against attack by enemy aircraft during ground or naval operations

a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy

a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy

a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy

a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy

a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy