Amazon and Microsoft ratcheted up their JEDI fight this week, with Microsoft telling Amazon to “stop asking for a do-over” and Amazon, which filed a new protest against the $10 billion cloud contract, vowing it “won’t back down.”

Earlier this week, Amazon filed a second bid protest with the U.S. Department of Defense challenging the decision to award the Joint Enterprise Defense Infrastructure (JEDI) contract to Microsoft. The move comes just weeks after a federal judge granted a remand of the project, which gave the DoD 120 days to “reconsider certain aspects” of the JEDI award.

Yesterday Frank X. Shaw, Microsoft’s corporate VP of communications, posted a blog that said Amazon’s latest filing “is another example of Amazon trying to bog down JEDI in complaints, litigation, and other delays designed to force a do-over to rescue its failed bid.”

Microsoft hasn’t seen the protest, which hasn’t been made public, but “it’s likely yet another attempt to force a re-do because they bid high and lost the first time,” Shaw wrote. “No one forced Amazon to bid high in the procurement. Amazon alone made the choice to bid high, but now wants to find a way to avoid the consequences of its own bad business decisions.”

Today, Amazon responded with its own blog “setting the record straight on JEDI.” Drew Herdener, VP of worldwide communications at Amazon, said he was responding to Microsoft’s “multiple self-righteous and pontificating blog posts that amount to nothing more than misleading noise intended to distract those following the protest.” In addition to Shaw’s blog, Herdener is likely also referencing this one from April by Microsoft Deputy General Counsel Jon Palmer.

Amazon maintains that the JEDI award wasn’t adjudicated fairly. “We think political interference blatantly impacted the award decision, and we’re committed to ensuring the evaluation receives a fair, objective, and impartial review,” Herdener wrote. “To be clear, we won’t back down on this front regardless of whether Microsoft chooses to try to bully its way to an unjust victory … We have great respect and admiration for those who serve and are honored to support the DoD, but we will not sit idle nor apologize for doing what we believe is right, fair, and just.”