For hundreds of thousands of veterans, the result has been long waits for decisions, mishandled documents, confusing communications and infuriating mistakes in their claims.

Numbers tell the story. Last year, veterans filed more than 1.3 million claims, double the number in 2001. Despite having added nearly 4,000 new workers since 2008, the agency did not keep pace, completing less than 80 percent of its inventory.

This year, the agency has already completed more than one million claims for the third consecutive year. Yet it is still taking about eight months to process the average claim, two months longer than a decade ago. As of Monday, 890,000 pension and compensation claims were pending.