The Axis nearly manage to capture Southhampton and reduce the GAR to two steps:

I attack the 5 step German ARM first with the GAR from Southampton with only 2 steps. The GAR is of course destroyed immediately. Then I attack with the MECH for the expected 2:2 result and get lucky with INF with a 3:1 result (expected 2:1, but I still had a GAR with 5 steps and a STR to finish the ARM off).
At the end of my turn half of the German invasion force is out of supply:

I also bought two INF and one MECH for the British. The British commander will be ready from R&R next turn. If the weather gets bad this Sealion will become a complete disaster. For the US I produced two FTR and a TAC.
In Libya Tobruk is about to fall:

I also destroy an Italian GAR and next turn Benghazi should fall.