China is using the massive amount of money they are getting from us to massively improve and increase military capabilities, has established naval and airbases all over the world, particularly Africa, the Indian Ocean, and even South America (who do you think operates the Panama Canal these days?) and are gearing up for military confrontation as we speak.
Focus, people.
And China is working overtime, I imagine, to fund 20 Republican Senators who will vote to remove President Trump from office when the time comes.
So, conflicts between major powers is all about imagery, bluffing and posturing. Meanwhile, the real enemy sits (not so quietly) within, carefully plotting & waiting while citizens who thought they were protected by constitutional controls suddenly find themselves legally enslaved. (See: Ocare, 2A restrictions, 4A violations, etc.)
More than border security, Trump's priority should be a plan of action to defeat the domestic enemy in the ongoing (cold) civil war.