What country's Declaration of Independence are you referring to? A declaration of independence is different from a declaration of war.
The American Declaration of Independence stated that the American colonies were breaking off ties with the British Empire and were forming their own government. This led to war but was not a declaration of war.
As for the event that sparked WWII:
Simple answer- Germany invading Poland
More complicated answer- Practically all of European history from the mid-1800s up until 1939, with WWI and global economic collapse as primary stage-setters.
the declaration of independence the declaration of independence the declaration of independence
The declaration came first.
who was the first sighner on the declaration of independence
The Declaration of Independence was written first.
In 1836 Declaration of Independence was sighned.
the declaration of independence
The Declaration of Independence, in 1776; then the Constitution, becoming effective in 1789
First state to ratify the Declaration of Independence.
Declaration of Independence
The First Continental Congress had nothing to do with the Declaration of Independence.
The first section of the Declaration of Independence defines democracy.
John Hancock was the first on to sign the Declaration of Independence. His signature is also the largest.