Thank you, Carol, and good morning, everyone. This morning, I'll cover three areas. Starting with our first quarter results including cash and shareowner returns, then I'll provide more detail on our cost-out and network reconfiguration progress as we reduce the volume we deliver for Amazon. Lastly, I'll touch on tariffs and trade policy changes and comment on our outlook for 2025. Starting with our consolidated performance. In the first quarter, we generated $21.5 billion in revenue, a decline of 0.7% compared to the first quarter of last year. Consolidated operating profit was $1.8 billion, an increase of 0.9% versus the first quarter of 2024, and consolidated operating margin was 8.2%, an increase of 20 basis points compared to the first quarter of last year. Diluted earnings per share was $1.49, up 4.2% from the first quarter of 2024. Now moving to our segment performance. As Carol mentioned, while volume and revenue performance in the quarter were in line with our expectations, our monthly performance was not. In U.S. Domestic, following a strong January relative to our expectations, uncertainty in the market began impacting consumer behavior. Demand shifted down in February, falling further than our expectations and normal shipping patterns and remained at that level at March. For the quarter, total U.S. ADV was down 3.5%, ground average daily volume decreased 2.5% year-over-year, and total air average daily volume was down 9.6%. Excluding the volume decline from Amazon, total air ADV grew 6.2%, driven by demand from healthcare and high-tech customers. Within ground, our new economy product called Ground Saver, which replaced SurePost, had an ADV decline of 8.4%, primarily due to pricing actions we took to grow yields on e-commerce volume. This is the first ADV decline we've seen in this product in five quarters as we have leaned into revenue quality. For the quarter, B2B average daily volume was up 1.5% compared to last year. Growth was driven by returns, which increased 8.8% year-over-year. We also saw ADV strength from healthcare and high-tech customers. B2C average daily volume decreased 7% year-over-year, driven by our managed decline in volume from Amazon, our focus on revenue quality, and some demand softness. In terms of customer mix, we saw strong ADV growth from SMB customers of 4%. In the first quarter, SMBs made up 31.2% of total U.S. volume. This is the highest SMB concentration we've seen in 10 years, and it is driving meaningful change in overall volume and revenue quality. Moving to revenue. For the first quarter, U.S. Domestic generated revenue of $14.5 billion, up 1.4% compared to last year, driven by increases in air cargo. In the first quarter, revenue per piece increased 4.5% year-over-year, which was the strongest revenue per piece growth rate we've seen in eight quarters, and it partially offset declines in volume. Breaking down the components of the 4.5% revenue per piece improvement, the combination of base rates and package characteristics increased the revenue per piece growth rate by 240 basis points. The net impact of customer mix and product mix increased the revenue per piece growth rate by 170 basis points. Lastly, fuel drove a 40 basis point increase in the revenue per piece growth rate. Turning to cost. Total expense increased 0.2%, including an increase in air cargo. We continued to drive efficiency in the quarter as we reduced purchase transportation costs from insourcing 100% of Ground Saver volume for final mile delivery, partially offsetting the increase in delivery costs, and we lowered small package block hours within our air network in response to the changing volume levels. These cost reductions were partially offset by expenses related to challenging weather. In the first quarter, cost per piece increased 3.7%. The U.S. Domestic segment delivered $1 billion in operating profit, a 19.4% increase compared to the first quarter of 2024. Operating margin was 7%, a year-over-year increase of 110 basis points. Moving to our International segment. We leveraged the agility of our integrated global network to navigate this period of uncertainty and grew International average daily volume for the second consecutive quarter. Total international ADV increased 7.1%, with all regions growing average daily volume versus last year. International domestic average daily volume increased 4.8% compared to last year, led by Canada. On the export side, average daily volume increased 9.3% year-over-year. Asia and Europe delivered double-digit export growth throughout the quarter, and at a country level, 15 of our top 20 export countries grew export ADV. In the first quarter, International revenue was $4.4 billion, up 2.7% from last year, as we expected. Revenue per piece declined year-over-year due to a stronger U.S. dollar and lower demand-related surcharges. Operating profit in the International segment was $654 million, down 4.1% year-over-year due to a mix shift to more economy services in Europe, lower demand-related surcharges, and investments we are making to expand weekend services in Europe. International operating margin in the first quarter was 15%. Moving to Supply Chain Solutions. In the first quarter, revenue was $2.7 billion. Revenue decreased $471 million, driven by a reduction of $563 million in revenue from Coyote due to our divestiture of this business in 2024. Within Supply Chain Solutions, Air and Ocean Forwarding revenue was flat to last year. Air freight revenue was slightly lower year-over-year due to lower volume, which was more than offset by higher market rates in Ocean. Core logistics grew revenue by 5.1%, and UPS Digital, including ROE and Happy Returns, grew revenue 32.5% year-over-year. In the first quarter, Supply Chain Solutions generated operating profit of $98 million. Operating margin was 3.6%, a decline of 320 basis points compared to last year, primarily driven by cost pressure in our Mail Innovations business. This is a postal injection product, and our contract with USPS expired at the end of 2024. The new rates from the USPS are causing short-term cost pressure, which we expect to address as we make adjustments to that business. Walking through the rest of the income statement, we had $222 million of interest expense, our other pension income was $37 million, which was higher than we anticipated due to updated expected return on asset assumptions, and our effective tax rate for the first quarter was approximately 22.5%. Turning to cash and shareowner returns. In the first quarter, we generated $2.3 billion in cash from operations. Free cash flow for the period was $1.5 billion. Also, in the first quarter, UPS paid $1.3 billion in dividends to shareowners and we repurchased $1 billion of our shares, completing our share repurchase target for the year. Now, let me provide an update on our cost-out and network reconfiguration efforts. As we've discussed, we are reducing the amount of volume we deliver for Amazon by more than 50% by June of 2026. Associated with this volume reduction, we are undertaking the largest network reconfiguration in our history. This effort has been combined with our Network of the Future initiative, as both will help drive us to a more efficient network. The first phase of our network reconfiguration includes 164 operational closures, including 73 building closures by the end of June of this year, and there's more to come. These actions will enable us to expand our U.S. Domestic operating margin and increase profitability. Our reconfiguration plan is comprehensive and includes everything from closing buildings, reducing positions, and cutting support costs through Efficiency Reimagined. To help you track along with our progress, we've grouped associated costs into three buckets. First is variable cost, which captures operational hours and flexes down quickly with volumes. Second is semi-variable cost, which is represented by operational positions and will also be adjusted to match volume levels. And third is fixed cost, which includes closing buildings and reducing expense from support functions, both of which have specific completion dates assigned. Our network reconfiguration and Efficiency Reimagined program is aligned with our anticipated Amazon volume reduction in 2025 and is expected to remove $3.5 billion in expense this year. Splitting the savings between our three cost buckets, approximately 35% of our cost reduction will come from variable cost, about 35% will come from semi-variable, and about 30% will come from savings and fixed costs. Now, let me walk you through some of the details and how progress accelerates through the year, starting with the pace of Amazon's volume decline. In the first quarter, Amazon ADV was down 16% year-over-year, which was more than we originally planned. Second quarter Amazon ADV is also anticipated to be down 16%, which is less than we originally planned. And looking at the first and second quarters together, our total expected Amazon decline for the first half of 2025 is on track. Then in the back half of this year, the ADV decline is expected to be approximately 30% in each of the third and fourth quarters. Looking at variable costs, this year associated with the Amazon volume decline, we plan to reduce total operational hours by approximately 25 million hours. Our reduction in hours was on track through the first quarter. Moving to semi-variable costs, our operational reduction target for 2025 is around 20,000 positions. Position changes are not only connected to the buildings we are closing, but will also be made across the entire U.S. network. Our planned reductions are in line with the total Amazon volume decline, and our semi-variable cost-out efforts were on track through the first quarter. In our fixed cost bucket, we expect to close 73 buildings by the end of June. About two-thirds of the buildings we are closing are in the Eastern part of the country, with the remainder in the West. As an engineering-driven company, we've developed a detailed checklist for each building closure to ensure that we continue to provide industry-leading service to our customers, assist our employees through these changes, and leverage our network planning tools and other technology to efficiently process volume in our network. And lastly, as Carol mentioned, our Efficiency Reimagined initiatives that are redesigning many end-to-end processes like procurement and customer onboarding are underway, and we expect to accelerate these savings starting in the second quarter. We are pleased with the progress we made in the first quarter with our cost-out and network reconfiguration efforts related to the accelerated glide-down of Amazon volume. And we are on track to achieve our 2025 cost reduction target of $3.5 billion. Now, turning to guidance for 2025. The macro-environment is highly uncertain due to changing trade policy and tariff uncertainty. As a global carrier, the eventual outcomes could result in pressure in some parts of our business and create new opportunities in others. We modeled several different scenarios for how the balance of the year might play out so that we can quickly pivot, continue supporting our customers, and lean into growth. And, as Carol mentioned, we're also closely monitoring our direct exposure related to our purchasing and capital plan. Today, I'll provide you with our outlook for the second quarter. We are not providing any updates to our consolidated full year outlook until there's more certainty in the macro-environment. Let's start with our assumptions for the second quarter. In our International business, we have factored in announced tariffs and changes to de minimis exemption. We also expect weakening demand on the China-to-U.S. trade lane will be partially offset by two factors. First is growth on China to non-U.S. lanes, and second is growth from the rest of the world inbound to the U.S. In our U.S. Domestic business, we have included our expectations. Margin is expected to be approximately 9.3%. In the U.S., in the second quarter, we expect ADV to be down about 9% and revenue to be down low single digits compared to last year. SMBs will be disproportionately impacted by the uncertain environment, which will add some pressure to operating margins. We expect the U.S. Domestic operating margin to expand by approximately 30 basis points compared to last year. Turning to International, we expect revenue to be down approximately 2% to last year and operating margin to be in the mid-teens due to lower demand-related surcharges and trade uncertainty. And in Supply Chain Solutions in the second quarter, revenue is expected to decline approximately $500 million due to the reduction in revenue associated with Coyote in the same period last year. Operating margin is anticipated to be in the high single digits. And finally, in the second quarter, in total below the line, we expect approximately $160 million in expense, and we expect a tax rate to be between 23% and 23.5%. In closing, I'll note that this uncertain environment reinforces why we've taken action to reshape our volume mix, pull cost-out, and reconfigure our U.S. network. We are focusing on controlling what we can control and executing our strategy to improve the long-term profitability of our U.S. business, drive cash generation, and deliver shareowner value.