Answer:
I wrote a really thorough explanation but It got deleted because "it was inappropriate" I guess they just want a watered-down version but Im not give you that so here:
PS: if you want sources ask and you shall receive. goodluck! (:
The branches work against eachother when it comes to laws. The legislative branch makes laws, but the President can veto those laws with a Presidential Veto. The legislative branch makes laws, but the judicial branch can declare those laws unconstitutional.
It means to "be nice to everyone, however, if they don't listen, show them your military power" literally.
I meant that if the easy way doesn't work, then use the hard way
hope this helps