June 30

Beginning on June 13, 1944, Nazi Germany launched the V-1 — a pulsejet‑powered “flying bomb” nicknamed the buzz bomb or doodlebug — in an attempt to terrorize and disrupt Britain and later Allied ports. The campaign forced fast, improvised defenses (Operation Diver), sustained attacks on launch infrastructure (Operation Crossbow), and a brutal learning curve in both technology and civil protection. Roughly 9,000–10,000 V‑1s were produced and launched; British wartime figures record about 6,184 killed and 17,981 injured from attacks on the United Kingdom. The campaign reshaped air‑defence tactics and fed postwar missile research.

On June 19, 2007, a suicide truck bomb detonated outside Baghdad’s historic al-Khilani Mosque, killing at least 78 worshippers and injuring over 200, in one of the deadliest attacks on a Shia religious site during the height of Iraq’s sectarian violence.

On June 2, 1983, a fire broke out in the rear lavatory of Air Canada Flight 797 while en route from Dallas to Montreal, leading to an emergency landing in Cincinnati. Despite a rapid evacuation, 23 passengers perished due to a sudden flashover that engulfed the cabin in flames, profoundly shaping modern aviation fire safety standards worldwide.