1.A military campaign denotes the time during which a given military force conducts combat operations in a given area (often referred to as AO, area of operation). A military campaign may be executed by either a single Armed Service, or as a combined services campaign conducted by land, naval, air, cyber and space forces.
Facts. 1  Tall marigolds are sometimes labeled African marigolds, and the dwarf kinds are often called French marigolds. 2  Tall marigolds (Tagetes erecta) grow anywhere from 15 inches to 4 feet tall with blooms that can reach up to 5 inches across.
(Tagetes patula) Marigolds are easy to grow and have a long flowering period. African marigolds have a upright growth and can reach a height of 30-40 inches, while French marigolds grow to only 8-16 inches. The scent is strong and somewhat unpleasant, and is effective in repelling many garden pests.