滅
This Chinese character means ruin.
You can watch how to write this. - (「滅」の書き順（筆順）動画 - 漢字書き順辞典)
There are 3 ways to read this, "ほろびる (滅びる)" or "滅ぼす (ほろぼす)" or "めつ".
"滅びる" is a verb which means be ruined or perish.
"滅ぼす" is a verb which means ruin or destroy.
"滅亡 (めつぼう)" also means ruin.
"亡 (ぼう)" also means ruin in this context.
The word "滅亡" is often used to describe history.
Since ancient times, various nations have risen and fallen.
We need to remember that Japan and any other countries are in this process.
By Higashi-Mikawa Kyōjindō Shujin (東三河狂人堂主人)