Is the US military storming D.C. ahead of Insurgency?

No. At least, the pictures being shared around social media this week certainly do not show that. The pictures are from old news articles.

NY Daily News
Forbes
WaPo
People

For example, the People pic shown above was contained within an article about D.C. National Guard testing positive for COVID-19 after summer protests.

If the US military is planning a secret operation, these pictures don’t portray it.