2 Answers
The Army began using the codes "H-hour" and "D-day" during World War I to indicate the time or date of an operation's start. Military planners would write of events planned to occur on "H-hour" or "D-day" -- long before the actual dates and times of the operations would be known, or in order to keep plans secret. And so the "D" may simply refer to the "day" of invasion.
| 14 years ago. Rating: 0 | |
Top contributors in Words & Wordplay category
Unanswered Questions
Kèo Nhà Cái – Cập Nhật Thống Kê Bàn Thắng Chuẩn Xác, Soi Kèo Bóng Đá Chuẩn Chuyên Gia!
Answers: 0
Views: 3
Rating: 0
Bí Quyết Chơi Lô Đề Online Hiệu Quả Tại 789CLUB
Answers: 0
Views: 10
Rating: 0
Bầu Cua 789CLUB – Trải Nghiệm Giải Trí Hiện Đại, Tối Ưu Cơ Hội Chiến Thắng
Answers: 0
Views: 9
Rating: 0
K99okcom
Answers: 0
Views: 9
Rating: 0
Jakir
Answers: 0
Views: 13
Rating: 0
Jakir
Answers: 0
Views: 8
Rating: 0
Topbet - Trang Chủ Topbet Link Truy Cập Chính Thức 2026
Answers: 0
Views: 13
Rating: 0
Mmooworks
> More questions...
Answers: 0
Views: 13
Rating: 0
Sam222
Jenn
BeGood2OneAnother