After noting that he's spoken with top military leaders - who he said includes those who have sons and daughters previously and now in combat - McConville expressed that sending troops to combat is not a decision that is taken lightly.
In remarks that reverberated in the political and military-industrial spectrum across the world, Trump also sought to draw a distinction between the U.S. military leadership and its rank and file, whose support he claimed.
"So, I can assure the American people that the senior leaders would only recommend sending our troops to combat when it is required in national security and in the last resort", he continued.
Trump, however, has been a relentless salesman of USA arms manufacturers, lauding and recommending them for countries ranging from Saudi Arabia to India, while excoriating North Atlantic Treaty Organisation nations and European allies for not spending enough on their militaries.
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Trump is seeking re-election on November 3, facing Democratic candidate Joe Biden.
"This president is consistent about one thing: If we're going to send our sons and daughters overseas to fight on our behalf, he's not going to let some lobbyist here in Washington, D.C., just because they want a new defense contract, suggest that they need stay overseas one minute longer than they should", Meadows told reporters at the White House.
"You sound so clear, as opposed to everybody else when they refuse", said Mr Trump.
Although McConville declined to directly address Trump's remarks during a virtual event hosted by Defense One on Tuesday, the Army's top general defended Pentagon officials against the President's assertion.
Such criticism of military leaders by a sitting president is highly unusual.
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"That comment was more directed about the military industrial complex", Meadows said on Fox News, using a term that refers to the US military establishment and defense industry.
Trump's comments were not directed specifically at top generals, admirals or Defense Secretary Mark Esper, Mark Meadows, Trump's chief of staff, claimed Tuesday. "Some people like to continue to spend money".
That remark followed a report in The Atlantic, in which anonymous sources alleged that Trump made disparaging comments about veterans and fallen soldiers.
Trump's unconventional briefing also included at one point asking a reporter to remove his face mask to make himself be heard better (the reporter declined, and simply spoke louder to make himself heard to Trump's satisfaction), and calling Joe Biden "stupid" - a word American school children are typically told to avoid using.
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