MAKING THE CASE: Defense Secretary Jim Mattis and Joint Chiefs Chairman Gen. Joseph Dunford appear before the Senate Appropriations subcommittee on defense this morning to make the case for the $30 billion fiscal 2017 supplemental funding bill to address immediate readiness concerns this year. Mattis will argue the infusion of cash is needed to maintain the combat effectiveness of frontline units, and will address maintenance backlogs with aircraft back home, a shortage of flying hours, and depleted ammunition stocks. The Trump administration requested $5 billion in the overseas contingency operations account and $25 billion in base funding that would require an increase in the spending caps imposed by the 2011 Budget Control Act, commonly referred to as sequestration. You can also expect discussion of the $54 billion the Pentagon is requesting for fiscal 2018 as well, although specifics of that spending plan are still being worked out. The hearing will be live streamed at 10:30 a.m. here.

ANTI-ISIS SUMMIT: Following his Senate testimony, Mattis will hotfoot it over to the State Department for a meeting of Global Coalition working to defeat ISIS. Foreign ministers and senior leaders from 68 countries are attending the ministerial, the first meeting of the full coalition since December 2014. The event is hosted by Secretary of State Rex Tillerson, whose remarks to the plenary session will be live streamed by the State Department at 10 a.m. Iraqi Prime Minister Haider al-Abadi will also address the group. Acting State Department spokesman Mark Toner said the discussions will be “looking specifically at ways to intensify the current campaign, which is in line with what is already been presented in terms of strategy to the White House,” but Pentagon officials say don’t expect any unveiling of the new Trump administration strategy to defeat ISIS, which remains a work in progress. “We also of course look forward to hearing additional ideas from the members of the coalition who’ll be present,” Toner said.