Analysis Summary:

The article is mostly accurate, with the key claims about the parade's date and purpose being verified by multiple sources. However, the title's emphasis on Trump's birthday introduces a potential bias, suggesting a focus on the political aspect rather than solely on the Army's anniversary. The details about the number of soldiers, vehicles, and aircraft are mentioned but not consistently verified across all sources.

Detailed Analysis:

• Claim:** A "day-long festival" will be held in Washington DC with 6,600 soldiers, 150 vehicles and 50 aircraft.
  • Verification Source #3: Supports the "day-long festival" aspect and mentions the numbers of soldiers, vehicles, and aircraft.
  • Verification Source #1: Does not provide specific numbers but confirms the parade will be held.
  • Verification Source #4: Mentions the potential presence of tanks and hundreds of military vehicles, supporting the vehicle aspect but not the specific number.
  • Verification Source #5: Does not provide specific numbers.
• Claim:** The parade will be held to mark the US Army's 250th anniversary on 14 June, which falls on the same day as Trump's birthday.
  • Verification Source #1: Supports this claim.
  • Verification Source #2: Supports this claim.
  • Verification Source #4: Supports this claim.
  • Verification Source #5: Supports this claim.

Supporting Evidence/Contradictions:

• The core claim about the parade coinciding with the Army's anniversary and Trump's birthday is consistently supported by Verification Sources #1, #2, #4, and #5.
• Verification Source #3 supports the claim about the "day-long festival" and provides specific numbers for soldiers, vehicles, and aircraft. While other sources don't contradict these numbers, they also don't explicitly confirm them.
• The title's emphasis on Trump's birthday, while factually correct, could be interpreted as a biased framing of the event.