Many world flags share unique characteristics, specifically with regard to shape and color. With the exception of Nepal, all flags are rectangular, although the exact sizes may differ.

1. Italy FlagsWith the spread of Italian culture around the world, many people are
familiar with the sight of Italy’s national flag. The green, white and red
colors or il tricolore as it is called in Italian has three equal vertical
bands with the green on the hoist side.
There were many variations of the flag in earlier years, representing
Italy’s long journey to becoming a united nation. Flags were adopted at
the beginning of the 17th century to symbolize the union of Scotland,
Ireland, and Britain.

2. History of Italy flag
Italy was a land of nation-states and kingdoms. In the late 18th century,
Napoleon’s forces invaded what is now northern Italy. With the Duchy
of Milan overthrown, in 1796 the Cisalpine Republic was born and a
new flag flown. Inspired by the French flag, the blue band was changed
to green, representing the uniforms of the Milan Civil Guard, while the
red and white bands from the original flag of Milan remained. The
shape, however, was a square.
The Twentieth Century
During the Second World War, fascists attained government control
and for two years the Italian Social Republic (1943-1945) ruled. The
standard flag was put aside in favor of a war flag that placed a silver
eagle clutching a bundle of fasci littori, which were symbols of fascist
power.
Meaning Behind the Colors of the Italian flag
Debate still goes on as to the true meaning behind the colors. Two
theories have evolved over the years. The first suggests a more
religious or poetic meaning to the colors with green for hope, white for
faith and red for charity.

3. Another more secular and straightforward interpretation states that
the green represents the Italian landscape, the white stands for the
snowy mountains of the Alps, and the red signifies the bloodshed that
led to Italy’s independence.
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