Convoy (noun)

1. A group of vehicles, ships, or aircraft traveling together, typically with a military escort.
2. A group of vehicles, ships, or aircraft traveling together for safety or protection.

Origin:

From french convoi "a convoy".

Examples:

1. The convoy was protected by military escort.
2. The convoy of trucks carried humanitarian aid.
3. The convoy of ships sailed through the dangerous waters.
4. The convoy of aircraft flew in formation.
5. The convoy was attacked by the enemy.