Coup or No Coup?

Is it really a coup when the Supreme Court orders the army to arrest the President????

I guess it is

coup d'é⋅tat

  –noun, plural coups d'é⋅tat

a sudden and decisive action in politics, esp. one resulting in a change of government illegally or by force.

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Origin:
1640–50; < class="luna-Img" src="http://cache.lexico.com/dictionary/graphics/luna/thinsp.png" alt="" border="0">

Synonyms:
overthrow, rebellion, revolution, uprising.