Thanks, Jeff. And now on to my commentary, and then I'll turn the call over to Tom to cover the financials. Slide 4, please. Last night, we released our first quarter results for fiscal year 2023. I am pleased that our performance and the strong start to our fiscal year. We grew revenue 8% with growth in both expertise and technology profitability and cash flow were also strong. And we won $3.2 billion of contract awards, which more than 80% is new business to CACI. That represents a two times book-to-bill for the quarter and 1.3 times on a trailing 12 month basis. Tom will provide additional financial details shortly. Slide 5 please, turning to the external environment. As we look out over the next several years. Prospects remain positive. In the immediate term, we are operating under a CR through mid-December, while the timing of the government fiscal year 2023 appropriations is not clear. What is clear is that we continue to see strong demand and bipartisan support for national security and modernization priorities. From a customer perspective, there are favorable budget indications for sustained spending in defense, intelligence and Homeland Security. And we see compelling opportunities in areas like digital solutions, enterprise IT and C4ISR cyber and space. This strong backdrop gives us confidence in our ability to drive long-term growth and margin expansion, robust cash flow, and shareholder value. Slide 6 please. As you've heard us say in the past, we are focused on investing the head of customer need to differentiate our technology offerings. Some of our most recent examples and successes include those in the space domain, where we are investing in photonics capabilities acquired through LGS and SA Photonics. The long-term growth opportunity for photonics is compelling with space-based capabilities a very high priority for many customers. And we are already delivering these capabilities directly to our government customers, as a supplier to OEMs on other programs. We also continue to invest in other space-based technology, like Assured Precision Navigation and Timing, and laser remote sensing or LiDAR. These technology investments are already seen demand from the major government R&D agencies in prime to space payloads. Turning to C4ISR, we continue to invest in a broad range of capabilities with software defined offerings a priority. Leveraging these investments CACI was recently selected to provide advanced technology capabilities to the U.S. Space Force. This one is a great example of our ability to deliver software defined innovation in a fast, agile manner to support critical national priorities. Evidence that our software-defined everything strategy continues to pay off. The enterprise IT modernization is a key requirement. Agencies need to improve cyber defense, support an increasingly dispersed workforce, consolidate and modernize legacy applications and networks for efficiency and realize the value of available data. Here we are investing in repeatable processes, automation infrastructure as code and key partnerships with commercial technology providers such as AWS ServiceNow UiPath in Juniper. A great example of CACI differentiation is the recent $5.7 billion enterprise IT-as-a-Service Wave 1 contract award by United States Air Force. Under this program, CACI will deliver enterprise IT service management systems and processes across the entire department of Air Force, as well as at the foundation for future waves. This program will leverage all of the IT investments I mentioned earlier. In addition to investing the head of customer need, we also invest in technology to provide better value to our expertise customers. A recent example was a contract award within the intelligence community, where the customer was buying mission expertise to support their intelligence collections, and analysis efforts. Through investments we've made an AI-based computer vision software, we differentiated CACI's offering and demonstrated how we can make our offering more efficient, effective and valuable to the customer by leveraging our technology. This benefits both sides, our customer realizes enhanced capabilities and repeatable solutions with a reduced dependency on people and overall reduce cost. And we realize benefits of differentiate in our bids, reduce labor requirements and a constrained labor market and earning better margins. All of these examples are proof positive that our technology strategy is working to not only grow our business, but also to enhance margins. In summary, we delivered strong first quarter results and remain on track for the full year. Demand in the budget environment are positive, we continued bipartisan support for national security and modernization priorities. We are successfully executing our strategy to invest ahead of need and leverage the synergy between expertise and technology to win in the marketplace. With that, I'll turn the call over to Tom.