10, 1000
A decade is 10 years, and a millennium is 1000 years
One way to develop a main idea
for your advertisement is to conduct product research. This way, you can learn
more about the product and advertise it the way you want it to be with rich
explanation.
The allies had to take strategic considerations, which they learned after attempting an invasion at the coast of Normandy, France; day that came to be remembered as "D-Day". The allies understood they couldn't attempt another landing on a heavily defended German outpost, but they did know the Germans did not have the enough amount of troops to defend all of the coasts, so they had to deceive enemy into a proxy attack point while attacking somewhere else.
