Thanks, Tom, and thanks to everyone for joining us today. Our second quarter results demonstrate yet again the power of our focus on profitable growth and cash generation. With clear intent, our team is driving current financial performance while also building for a more prosperous future. Turning to the income statement on Slide 5. Revenues for the second quarter were $4.13 billion, up 7.7% year-over-year. Robust revenue growth reflects the benefits of both the strong demand environment and historically low levels of attrition. The highlight for the quarter was margin performance. Adjusted EBITDA was $559 million for the quarter, up 33% year-over-year, and adjusted EBITDA margin increased 260 basis points to 13.5%. We achieved this record margin through business mix and indirect cost management. Program-level execution was generally very strong, but EAC adjustments were a net $12 million headwind. Non-GAAP net income was $360 million and non-GAAP diluted EPS was $2.63, up 43% and 46%, respectively. Below-the-line items had no material impact on net income or EPS. Turning to the segment view on Slide 6. National Security and Digital revenues increased 1% year-over-year. We saw volume growth on our Sentinel and DES programs, as well as several contracted research and development efforts. You may also recall that last year we had spikes in some of our large digital modernization programs, notably NGEN and AEGIS, which created a tough year-over-year comparison. National Security and Digital is also the segment most impacted by protests. Still, accelerating growth in National Security and Digital is a major focus of the ongoing strategy discussion. National Security and Digital non-GAAP operating income margin increased 20 basis points from the prior-year quarter to 10.4%, with some milestone achievements, strong cost control and excellent program execution. For the first half of the year, National Security and Digital has been solidly ahead of plan on profitability. Health & Civil revenues increased 22% over the prior-year quarter, and non-GAAP operating income margin came in at 24.9%, up from 14% a year ago. The primary driver of revenue growth and increased profitability was higher volumes across our managed health services portfolio and an extra quarter of catch-up on incentive fee awards on our VBA disability exam contracts. Commercial & International revenues increased 3%, paced by an uptick in deliveries on security products, higher volumes in our commercial energy business and a hardware refresh in our Australian IT business. These drivers offset $39 million of write-downs in our UK business, primarily on two fixed-price mission software development programs caused by changing requirements and scheduled slippages. The UK write-down suppressed non-GAAP operating income margin to 0.7% in the quarter. Absent these write-downs, Commercial & International would have posted 9.7% year-over-year revenue growth and non-GAAP operating income margins of 8%. Although these write-downs are disappointing, they underscore the rationale for the new organizational structure. The C&I team is bringing greater focus on programmatic execution within the international portfolio and they quickly took action to ensure the long-term success of our UK operations. We're confident that we'll get back on track towards our financial and operational objectives within the UK. And on balance, we remain encouraged by the strong performance and demand signals across our Commercial & International segment. Finally, in Defense Systems, revenues increased 6% over the prior-year quarter on a total basis and 7% organically. And non-GAAP operating income margins increased 170 basis points year-over-year to 10.3%. Tom touched on the improvements the segment is making on program execution, and it is good to see the kind of financial performance that we expected from this portfolio. As we transition from development to production on some key programs, we see Defense Systems as a growth and margin driver for Leidos. We're making great strides towards unlocking the full potential of this business and are optimistic 2024 marks a significant turning point towards a brighter future. Turning now to cash flow and the balance sheet on Slide 7. We generated $374 million of cash flows from operating activities and $351 million of free cash flow. We had our highest collection week ever, which led to the exceptional Q2 performance. Overall, we're seeing a strong focus on cash throughout the organization. DSOs for the quarter was 58 days, an improvement of one day from a year ago and four days sequentially. In Q2, we repurchased a total of $114 million in shares, including $100 million on the open market, and paid $51 million in dividends. We ended the quarter with $823 million in cash and cash equivalents and $4.7 billion of debt. Our gross leverage ratio now sits at 2.4 times, which gives us plenty of financial flexibility. Next, I'll go through our enhanced outlook for 2024 on Slide 8. We're raising the lower end of our revenue guidance by $100 million, which gives a new range of $16.1 billion to $16.4 billion. We're increasing adjusted EBITDA guidance to approximately 12%. And we're raising our non-GAAP diluted EPS by $0.20 to a new range of $8.60 to $9. Our guidance for operating cash flow remains at approximately $1.3 billion for the year. This enhanced outlook reflects our strong first half performance as well as broad-based momentum across the entire portfolio, but let me walk you through some of the drivers of the second half performance for your modeling. Clearly, we're seeing strong momentum in our managed health services business. Last call, we signaled some potential second half revenue and margin headwind in our VBA disability exam business based on an upcoming recompete, which remains ahead of us. In addition, the unprecedented caseload of disability claims spurred by the PACT Act is straining the VA's budget resources. Earlier this month, the VA urged Congress to approve $15 billion to fund budget gaps in government fiscal years '24 and 2025 for risk cuts to veterans' benefits and care. The VBA customer has implemented several measures to proactively manage through these budget challenges, including dialing back its internal staffing, which suppresses industry case volume. We're already seeing the impact of this change with reductions in our near-term case backlog. Given that veterans benefits work is funded through mandatory, not discretionary budgets, and caring for veterans has broad bipartisan support, we expect underlying caseload to rebound in our fourth quarter. Notwithstanding this temporary funding issue, we stand ready to continue to deliver exceptional service to the nation's service members as a trusted mission partner to the VA. We expect Commercial & International margins to snap back in the second half, and for National Security and Digital margins to moderate somewhat, consistent with our commentary on the last two calls. And lastly, in the back half of the year, we've stood up a robust innovation fund focused on growth. Our bottom-line performance puts us in a favorable position to accelerate investments across the business, as seed corn for our emerging strategy to continue to drive sustainable profitable growth. With that, operator, we're ready to take some questions.