The logo is going to represent a security company which focuses on surveillance equipment.
Name of the company; Defence Surveillance LTD
The logo needs a symbol to represent the brand so i have few suggestions;
Digital globe (material; chip boards)
Magestic Bird example, pheonix, Eagle.
Colour Theme; Orange -light and bright + Blue light & sky ...
Skills: 2d design, adobe illustrator cs6, adobe premiere elements, concept design, logo design