People were often warned that bombing was about to start through various means such as air raid sirens, public announcements, and warning broadcasts via radio. In some cases, visual signals like flares or colored flags were used to alert the population. Additionally, communities developed warning systems that included designated lookouts or spotters who would relay information about incoming attacks. These precautions aimed to give civilians a chance to seek shelter and minimize casualties.
To kill people
they warned people about air raids
chicken
The purpose generally given for area bombing (in Europe) was to cause widespread disruption especially by making large numbers of people homeless.
the US joined the fighting in 1941 after the bombing of pearl harbour by the Japanese
Air raid sirens
Nothing. Some search lights were placed that warned people and bomb shelters were built but many people still died.
Initially the bombing was aimed at coastal shipping and RAF airfields to have air superiority over the south of England in preparation for an invasion.
The bombing of Hiroshima was only one bomb. It was the atomic bomb called little boy.
Tinian Island.
25 Aug 1940 by UK
By japanesse bombing the airstrips
March 20, 2011
because Hitler hates the Jews
September
by waatching the news about it
Oklahoma was chosen as representative of America's Heartland.