Mehmet II after invading Wallachia to fight Vlad with the biggest army of the Ottoman

TLDR of the above bit: Sultan rocked up to see twenty thousand people on stakes, and was like “yeah fuck no we’re not messing with this guy”

Mehmet II after invading Wallachia to fight Vlad with the biggest army of the Ottoman Empire but then seeing a forest of 20,000 impaled people on his way there.
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(TITLE FROM REDDIT r/HistoryMemes)

A stade is about 1/8 of a mile, this area would be about 2 1/8 miles long.