Washington just saw its biggest military parade in decades.  
Tanks and vehicles rolled through the streets to mark the Army's 250th anniversary.  
Nearly 7,000 troops joined, coinciding with Trump's 79th birthday.  
He got a warm welcome, 21-gun salute, and a crowd singing "Happy Birthday."  
Meanwhile, protests erupted nationwide.  
In D.C., a march headed to the White House with "Trump must go now" signs.  
L.A. police used smoke or gas to disperse "No King" demonstrators.

Wow that parade was epic with all those tanks and cheers for Trump’s birthday while folks in LA stood strong for their beliefs