By Osman Aboubakr
https://www.bbc.com/news/world-us-canada-52568405
The President of the United States, holding a very influential office, has described the fight against the Coronavirus (COVID-19) as a “war”: "I view the invisible enemy [coronavirus] as a war," he said. "I don't like how it got here, because it could have been stopped, but no, I view the invisible enemy like a war."
If he can make that argument - perhaps you can use it too.
Assuming you have no other stronger arguments, ask your General Counsel to check the Force Majeure clause in the contract at issue or the Force Majeure provision under the laws applicable to you - can you make an argument that you cannot perform the terms and conditions of your contract due to the effects on the economy arising from the government in your jurisdiction waging a war against an “invisible enemy”?
Of course, you would still have to show that it was all unforeseeable, cannot nor could not have been mitigated and is causing you to default on or delay your performance.