The renewed scrutiny comes as Washington continues to maintain its highest travel warning for Afghanistan, advising American citizens against visiting the country.
The spokesperson noted that more than 450 British military personnel had died in Afghanistan and said their service and sacrifice would never be forgotten.
According to the report, 43 Polish soldiers and one civilian paramedic were killed, while more than 200 Polish personnel were wounded.
Speaking to Fox News on Monday, he said those responsible for the manner of the withdrawal will definitely be held accountable.