I have removed all the old caulk on the exterior widow moldings next to the brick. Must have been on there since the house was built about 40 or so years ago.
Next I  will mix up about one quart of mortar mix and put it in my mortar bag to fill in any missing mortar. A mortar bag is about the same as a cake decorating bag.
Then I will caulk and paint the new caulk. 

Already done the front entry door when I replaced it last fall.

Good thing the house is a one story ranch with my physical limitations.