armor concentration in a sentence

1. At about 17 : 30, the Israeli cannons began shelling Egypt's armor concentration.
2. Weapons used on attack helicopters can include autocannons, machine guns, anti-tank role to destroy enemy armor concentrations.
3. From this point on bombers mounted strategic bombing missions against military targets of all types supporting the North Korean ground troops, including ports, armor concentrations and supply stockpiles.
4. "In the last 48 hours, we've hit 10 armor concentrations, 11 artillery positions, three command posts, fuel dumps, radio relay links, ammo dumps, barracks, bridges, railways, border posts, " said Clark.
5. It's difficult to find armor concentration in a sentence.