Thanks, Didier, and good afternoon, everyone. We ended 2023 with cash and short term investments totalling slightly over $1 billion. With the strongest balance sheet in the industry, we are able to support our leading position in certification and manufacturing while at the same time capitalizing on the opportunities that JoeBen and Didier highlighted, expanding our capacity, broadening our base of operations with the Department of Defense and investing in the early stages of commercialization. Looking back at the fourth quarter of 2023, we incurred a net loss of $115 million, reflecting a loss from operations of about $128 million, offset by interest and other income of $13 million. Our net loss compares to a net income in the third quarter, with the difference explained by the non-recurrence of the favorable revaluation of our warrants and earnout shares. Our operating expenses were largely flat over the quarter, reflecting higher spending on staffing and certification activities, offset by a lower accrual for stock-based compensation compared with the prior quarter. In the fourth quarter, we recognized our first revenue as a company, totaling $1 million. This revenue represents consideration received for providing early government-directed flight operations conducted in Marina, California, with our prototype aircraft. The associated costs are called out in our operating expenses under flight services, which represent the direct cost associated with supporting these flights. We've defined this revenue and cost as providing flight services to differentiate it from our long-term air taxi service model, which we expect will look very different. For example, since we are utilizing a prototype aircraft for these operations, we are not including the aircraft cost in our figures, nor do we have other expected costs like landing fees that would eventually be part of a more traditional revenue and cost of goods sold approach. Adjusted EBITDA, a non-GAAP metric that we reconcile to our net income in our shareholder letter was a loss of $96 million in the fourth quarter. This was about $3 million higher than the prior quarter, reflecting increased staffing and cost to support certification as mentioned earlier. Our adjusted EBITDA loss was just under $19 million higher than in the same period last year, reflecting the growth in our organization and expenses to support manufacturing and certification. Our global staffing, with more than 1,700 employees, continues to grow at a measured pace as we bring on resources in a deliberate and pragmatic way to support our initiatives at just the right time, with most of our staff supporting our company's certification and manufacturing efforts. In the fourth quarter of 2023, our cash used in operations and spending on property, plant, and equipment totaled $91 million. For the full year, this totaled $344 million, which was below our anticipated spending range, reflecting timing of payments and disciplined choices around our spending in the fourth quarter. As mentioned at the outset, we ended the year with $1 billion in cash and short term marketable securities. As we look to the year ahead, we are excited by the significant opportunities that JoeBen and Didier highlighted, as we continue to garner support for bringing quiet emissions-free flight to market and to execute on certification and manufacturing milestones. Turning to our outlook for 2024. First, on the top line, while we are not providing detailed revenue guidance for next year, it is important to understand the breadth of our flight programs in 2024. Our revenue this year will be driven by on-base government-directed flights that are part of the contract that we signed with the Department of Defense in April of last year. We will also fly aircraft on-base and in Marina as part of our internal certification and testing programs. We do expect to receive payments from the US government for some portion of these flights as we have in the past, which we account for as contra R&D expense along with other R&D-related deliverables. With one Joby aircraft currently at Edwards and a second expected to be delivered this year, our government-directed flights will show up as revenue similarly to what we recorded in Q4. However, the agreed payments for our earliest directed flight operations, which we completed last year, were higher than what we will record for on-base operations, which reflects the progressive maturity of the aircraft and our operations. Consequently, our fourth quarter 2023 revenue should not be presumed to be annualized into this year. Additionally, our on-base flight hours are expected to be lumpy as we find the right cadence with the Department of Defense with our first on-base operations. For example, our aircraft at Edwards has been undergoing testing in the first quarter, as Didier described earlier, so we do not expect meaningful revenue in this quarter. In total for the year, the overall impact to our cash from our first on-base operations is expected to be negligible, which is consistent with our plan. As we have explained in the past, the more timely benefits we expect to gain from this early engagement include operational learnings, which will pay dividends into the future as we build both our government and commercial service businesses and the opportunity to showcase our aircraft's features and capabilities to a broad array of potential future government customers. From a spending perspective, we expect growth in our certification, manufacturing, and go-to-market activities to result in the use of cash, cash equivalents, and short term investments of approximately $440 million to $470 million. This increase compared with 2023 includes continued staffing growth and the production of additional aircraft and parts as Didier discussed earlier. We also plan to expand our manufacturing facility in Marina, California, breaking ground on a building that more than doubles our footprint in Marina to support flight training, aircraft storage, and expanded manufacturing processes. This is expected to provide sufficient space to more than double our annual production capacity at this site, giving us the option to scale up to 25 planes per year to support early market operations while we bring up our Ohio facility. I'd like to thank the State of California who approved a $9.8 million CalCompetes grant in November and thank our local community partners who supported our application. This grant will offset a substantial portion of the building cost. As we discussed last quarter, we are planning to add manufacturing capacity in Dayton, Ohio, the birthplace of aviation. We have agreed to the location for our initial manufacturing operations and are days away from closing on the facility purchase. After interior improvements and the installation of machining equipment, this facility will start building parts to support production and aircraft assembly in California. We are grateful to our state and local partners in Dayton, Ohio for their support with incentives totaling up to $325 million, a portion of these incentives will offset much of our planned investments at this first site starting this year. With these investments, you can expect our capital expenditure to increase significantly relative to the $31 million we spent in 2023 as we build out our facilities to support aircraft production. This strategy of supporting initial production and certification from our San Carlos and Marina facilities and a stepwise systematic scaling in Dayton, reflects our rational measured approach to manufacturing and spending. It gives us optimal flexibility to incorporate learnings from the production floor while we proceed through the certification process. It also demonstrates the maturity of the organization to prevent overcommitting investments and resources while we certify, build and commercialize this new form of transportation. In summary, 2023 was a year of notable achievements from progressing certification, the rollout of our first production aircraft, first flights with a pilot on board, first urban exhibition flight in New York City, the delivery of our first aircraft to a customer, and our first revenue, and 2024 is off to a fast start, as you've heard both on the certification front with the completion of stage three of our certification process and the signing of a definitive agreement to launch exclusive air taxi services in Dubai. We are excited by the year ahead and the opportunities we see as we continue to lead our industry towards commercialization of this revolutionary technology. This concludes our prepared remarks. Operator, would you please instruct participants on how to ask questions?