As Tom highlighted, 2025 was an outstanding year for Leidos Holdings, Inc. Marking the third straight year of double-digit non-GAAP earnings and cash flow growth. We are focused on and delivering sustainable growth over the long term. Also, as Tom mentioned, despite external market pressures, performance exceeded initial projections across nearly all key metrics. Enabling us to raise guidance twice this year and exceed the top end of our margin, earnings, and cash flow ranges this quarter. Our performance stands as a testament to the strength of our differentiated portfolio, the precision of our North Star 2030 strategy, and the discipline and agility of our entire team. Please turn to Slide 5. For the year, revenues of $17,200,000,000 were up 3.1%. For the quarter, revenues of $4,200,000,000 were down 3.6%. Year-over-year comparisons include the impact of two major factors. The six-week government shutdown in 2025 and an extra work week in 2024 as part of our 4-4-5 financial calendar. These impacts were concentrated in the fourth quarters and the extra work week is about twice as impactful as the shutdown. Together, these two factors decreased revenue growth by about seven percentage points for the quarter, and two percentage points for the year. The underlying business grew strongly across the entire portfolio, with especially robust demand in integrated air defense, Intelligence Community mission support, energy infrastructure, and full spectrum cyber. Adjusted EBITDA margin for the fourth quarter was 13.2%, up 160 basis points year over year. On a full-year basis, adjusted EBITDA margin increased 120 basis points to 14.1%. Exceeding the top end of our high-13s guidance from the last call. Our margin expansion journey has meaningfully changed how we view what is possible. And that change permeates the entire company. The sectors are more focused on program execution, with six consecutive quarters of positive net EACs, and all of our functional organizations are continually pursuing operating efficiencies. Non-GAAP diluted EPS was $2.76 for the quarter and $11.99 for the year. In 2025, non-GAAP diluted EPS was up 17%. $1.78 above 2024, $0.24 above the high end of our prior guidance range. The primary driver of the robust EPS growth was consistently strong EBITDA. Growth was propelled further by accretive capital deployment. We retired 4.4% of our diluted share count over the year which contributed about $0.50 to EPS. Turning now to an overview of our segment results on Slide 6. I am proud that all four segments contributed to our strong results. Every segment grew revenues for the year, and improved margins for the quarter and the year. Looking at the year-over-year revenue comparison, the extra work week and shutdown had roughly the same impact on the sector as the company as a whole. With one exception. Commercial and International was unaffected by the shutdown. And the extra work week lowered growth by about five points for the quarter and one point for the year. National Security and Digital showed strong and consistent underlying growth. In addition to contributions from Kudu, we had sustained uplift from the robust business development results over the past year. Segment non-GAAP operating income margins rose 160 basis points in the quarter and 20 basis points for the year, reflecting a more profitable business mix and excellent execution. Health and Civil revenues were up a bit for the year and down a bit for the quarter absent the extra work week and shutdown. The Managed Health Services business was a moderate headwind in the quarter and a moderate tailwind for the full year, and volumes on DHMSM were lower as the electronic health record transitioned to a sustainment phase. Health and Civil non-GAAP operating margins increased 80 basis points in the quarter and 170 basis points for the year, as the result of strong program and cost management, as well as technology-driven efficiencies. Accounting for the extra work week, Commercial and International revenues grew nicely in the quarter and the year. Segment growth was led by improved performance in the UK, and increased engineering support for commercial utilities, which offset the Barrick divestiture. Segment non-GAAP operating margins jumped 180 basis points in the quarter and 230 basis points for the year with better performance across the C&I portfolio driven by strong execution and business mix in the UK and Australia, operational gains in SES, and increased use of AI to accelerate grid engineering execution within commercial energy. Lastly, Defense Systems remains aligned with administration priorities and sustained robust revenue growth throughout 2025. Q4 performance was bolstered by accelerated production of small glide yacht emissions and IFPIC Increment 2 systems as well as preparing for 2026 production on a range of systems. Segment non-GAAP operating margins rose 680 basis points in the quarter, and 160 basis points for the year, as we moved into the production phase on several key programs. Turning now to cash flow and the balance sheet on Slide 7. Cash generation is a hallmark of Leidos. And we generated record fourth quarter and full-year operating cash flows of $495,000,000 and $1,750,000,000 respectively. Outperforming our cash flow guidance by $100,000,000 reflects our commitment to profitable growth, and $150,000,000 in cumulative Section 174 cash tax savings, of which $75,000,000 was realized in Q4. Netting out capital expenditures, free cash flow for the quarter was $452,000,000 or 127% of non-GAAP net income. For the year, free cash flow was $1,630,000,000, a 104% conversion rate. In the fourth quarter, we repurchased $305,000,000 worth of shares and paid $55,000,000 in dividends to end the year with $1,100,000,000 in cash and cash equivalents, $4,600,000,000 in debt, and a leverage ratio of 1.9 times gross debt to adjusted EBITDA. As Tom mentioned, we are excited to take advantage of our balance sheet to further the strategy through the acquisition of Entrust. We plan to pay the all-cash purchase price of $2,400,000,000 with $500,000,000 of cash on hand, $500,000,000 in commercial paper, that we will pay down during 2026, and $1,400,000,000 in new bonds. We expect the transaction to close in Q2 subject to regulatory approval and other customary closing conditions. At the time of close, our pro forma gross leverage will be 2.6 times, comfortably below our three times target. Affording us the capacity to capitalize on organic growth and potential future M&A opportunities in line with North Star 2030. Now on to the forward outlook on Slide 8. In 2025, our diversified portfolio proved resilient in evolving market conditions. As Tom said, 2026 will be the year that the impact of concentrating corporate investments and shaping the portfolio towards the growth pillars shows clear dividend as we accelerate growth throughout the year and further separate from the pack in 2027. Getting to the specifics, for 2026, we expect revenues between $17,500,000,000 and $17,900,000,000. Reflecting growth of up to 4% over 2025. We expect revenue growth will build throughout the year ending with sustained momentum approaching double digits. We are guiding to mid-13s adjusted EBITDA margin in 2026. This level normalizes some of the onetime benefits of 2025, and secures a sustainable baseline. We expect to continue to invest to accelerate our growth pillars, uphold our high level of program execution, maintain strong cost management, and drive indirect cost efficiencies through the enterprise transformation initiative. We expect non-GAAP diluted earnings per share between $12.05 and $12.45 which assumes interest expense of approximately $200,000,000 and an effective tax rate of about 24%. We are also assuming a weighted average share count of approximately 129,000,000. We expect another robust year of operating cash flow at $1,750,000,000 despite a $90,000,000 year-over-year headwind from 174 timing. Free cash flow will be down a bit as we triple our CapEx spend to $350,000,000. This guidance does not include any accommodation for the Entrust acquisition. We plan to update the guidance post close, likely on our first quarter call. In 2026, we will be operating in our new segment structure, and to help your modeling, we recast 2024 and 2025 financials in the new structure and filed them with our press release. Let me spend a few minutes outlining these segments and how we see them performing in 2026. The largest, Intelligence and Digital, was $5,700,000,000 in revenues in 2025, at 10.1% non-GAAP operating income margin. In 2026, we see mid to high single-digit revenue growth at steady margins. This trajectory is supported by a full year of Kudu, the continued phase-in of several large cyber and IT awards, and an increasing velocity in our bid pipeline. Longer term, we expect to sustain mid-single-digit growth opportunities for margin improvement. Last year, the Health segment generated $4,700,000,000 in revenues, with non-GAAP operating income margin of 25.5%. In 2026, we expect modestly lower revenue and margin from the additional vendor on the VBAMDE work and continued transition on DHMSM. Beyond 2026, we see Health inflecting to growth and sustaining robust profitability above 20% as administration priorities to unlock make opportunities in rural and behavioral health as well as enhanced automation to deliver better, faster, and cheaper solutions for our veterans. Homeland delivered $3,100,000,000 in revenues, with non-GAAP operating income margins of 9.2% in 2025. We expect growth to track the corporate average and keep that pace through the decade as global imperatives unfold. While margins are likely to be relatively stable in 2026, this portfolio's blend of fixed price work and commercial exposure provides a clear opportunity for margin expansion over the longer term. In 2025, Defense accounted for $3,700,000,000 of revenues, with non-GAAP operating income margin of 10.1%. We anticipate revenue growth above our corporate range in 2026, with a modest decline in margins as some high-margin airborne programs ebb. Looking further out, this segment, with its more robust investment profile, offers significant opportunity for growth and margin expansion through 2030, as increased homeland defense opportunities come online. With that, operator, we are ready for questions.