I owe my mid-life deepening of my faith to a Catholic Navy chaplain who was assigned to my Battalion Landing Team in the Marines. 

We were preparing to attack through the breach in Iraq in March 2003 (within hours..these things today are rarely given actual h-hours...instead it's "be ready within 24 hrs...be ready within 12, be ready within 4."..etc.). We were in our chemical suits, with masks on our hips, in or near our vehicles waiting for the word to move a few Kms to the breach points at the border....Padre walked by and said "who wants to go to Mass"...and I said "I do Father if I can also get a Confession..." and he simply waved me forward to a big hole we had earlier made for our bunker against silkworm missiles in the middle of the Kuwaiti desert.

20 minutes later, Mass was over, Confession was over and I got into my vehicle and went into battle totally serene and totally resolved to "get serious about my faith". 

I got back to the US I wrote to him & thanked him.