An infected tick must be attached for 24 to 48 hours to transmit Lyme disease (and at least 12 to 24 hours to transmit anaplasmosis, another serious tick-borne disease). Lyme disease is unfortunately a fairly common canine disease. Symptoms can include fever, reduced energy, and lameness.
D-day(n.) (Mil.) the day designated for the beginning of a planned attack by a military force; in communications the day is often otherwise unspecified for security reasons; as, the day before D-day the troops will move into position.
Eisenhower Decides on D-Day. The Allied planners knew they could not control the weather for D-Day (D-Day was the first day of any military operation during the war. The expression D-Day has come to mean the greatest single Allied operation of World War II, the invasion of Normandy).