More sex

My husband and I fell into a little rut and we were going a while without sex (over a week without it). And recently it’s been a once a day or every other day. I want to connect with him more on a physical level but I don’t know what else to do to engage him. He’s in the army so his job can be tiring physically and mentally. When he comes home in the afternoon, he’s always too tired. I know he is tired but my mind can’t help but tell me he doesn’t want me (I know it’s not true but the idea is always there). What can I do to get more action from him??