When the flag is at "Half-mast" then this is an indication of distress , respect or mourning .
sounds like the Japanese flag
Checkered.
Black and whire checkered.
Ensign O'Toole. The ensign is usually the largest flag, flown at the back, or stern, of a ship.
The British Union. It is commonly referred to as the "Union Jack" but technically that name applies only when a flag of that design is flown from the jack staff at the bow of a ship. When flown on land it is called the Union Flag. When flown at sea you can be in trouble because only the Royal Navy may fly the Union Flag or Union Jack at sea. Private citizens are not allowed to do so; their yachts must fly the Red Ensign.
The term "Union Jack" is not considered correct because a Jack is a flag flown from a ship and British merchant ships fly the Red ensign and the Royal Navy flies the White Ensign. The Official title of the Flag of the United Kingdom is the "Union Flag" and unoffically "British Flag" although this term might be considered controversial in Northern Ireland
The Navy uses the term "Ensign" to refer to their flag. An Ensign is a flag that signifies the nationality of a vessel and is typically flown at the stern.
The Union Jack is so called because it is the Union Flag flown from a jack staff of a ship. If the flag is flown anywhere else it is properly called the Union Flag. The word "Union" refers to the uniting of England, Scotland, Wales, and Northern Ireland to form the United Kingdom.
-- Flag vs Jack --The British Flag is called the 'Union Flag', as it is comprised of the crosses of St Andrew (Scotland), St George (England) and St Patrick (Ireland). St David is not included because Wales is a Principality, not a Kingdom.The flag is called the 'Union Jack' when flown from a ship.
It is correctly called the Union Flag, and only the Union Jack when it is flown on a ship, the flag would be hoisted up a ships 'jackstay' a rope which runs up the main ships mast, hence the name Union Jack. Most British citizens offhandedly call it the "Union Jack" though, in much the same way Americans call their flag "Old Glory". They called it the old glory because it is old.
During the "Red Scare" the reds changed there name from the Reds to the Red Legs. But after this, they changed it back to the Reds.
Henderson Field, Midway
See website: Battle of Midway