"To every Gold Star family who honors us with your presence, you lost sons, daughters, husbands and wives, mothers and fathers ... they each had their own stories, their own lovely dreams ... they were all angels sent to us by God", he said.
Trump recognized former Sen.
Addressing Horton's weeping widow, Trump added, "Jane, America grieves with you".
"Words can not measure the depth of their devotion, the purity of their love or the totality of their courage", Trump told an audience that included relatives of slain service members. President Trump told the crowd, "We only hope that we every day that we can prove worthy".
Trump paid special tribute to several families whose children fell in battle, including his Department of Homeland Security Chief John Kelly, whose son Robert, a U.S. Marine, was killed in 2010 in Afghanistan.
"They were people who stood for something larger than themselves, people who understood what we have in our country is worth fighting for", Dunford said, introducing Defense Secretary James Mattis.
Trump is also set to lay a wreath Monday at the cemetery, the final resting place for many US military members and others who have served the country.
They called KRMG after leaving Arlington, and spoke about the honor and pride they felt to be a part of the day's remembrance.
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Trump also remembered Army Sniper Christopher Horton and Special Forces Captain Andrew D. Byers, both recently killed in Afghanistan as their family members attended the ceremony. "We honor you and we pledge to you that we will always remember Robert and what he did for us".
The President's first Memorial Day address comes as his administration is pushing back against reports his son-in-law and senior advisor, Jared Kushner tried to set up secret communications with Russian Federation.
Trump has never apologized for those remarks, but in his speech Monday he lavished warm praise on other veterans.
"The Kelly family represents military families across the country who carry the burden of freedom on their shoulders", Trump said.
After the ceremony, the president visited with families in Section 60 of the cemetery, where most of those killed in Iraq and Afghanistan are buried.