At War with the Silverfish is the second solo extended play by American singer-songwriter Laura Jane Grace.

It was surprise released on September 22, 2021[1] by Polyvinyl Record Co.[2] The EP primarily features acoustic folk punk and folk rock songs, with a hint of power pop.

Speaking about her writing process, she shared "I've just been trying to stay sane over the past year and a half or so.

[6] In a review for NME, Justin McMahon commended Grace for revisiting her folk punk roots, noting that "Yesterday Part II" could easily fit into an Against Me!

[7] Skyler Graham of Mxdwn remarked "Laura Jane Grace has a remarkable talent for conveying deeply personal yet relatable stories, and At War With The Silverfish finds the balance between experiences that are both heartbreaking and universal.