My father-in-law was in the signal corps and stationed on New Guinea, too. He was at Hollandia for a long time, and then went with the force that invaded Luzon at Lingayen in January 1945. Near Lingayen is Dagupan, where he met my mother-in-law.
One of the few things he told me about that time was that for 18 months on New Guinea, they had nothing but corned beef for breakfast, lunch, and dinner (the stereotype of the US Army serving nothing but spam did not hold true for his unit, they had nothing but canned corned beef). He said that for Thanksgiving 1944 they had a real traditional meal, with turkey, stuffing, mashed potatoes, the whole nine yards. He said that after all that corned beef that Thanksgiving meal was so good.
The US troops that went to the Philippines brought corned beef with them, and ever since then corned beef has held an important part in Filipino cuisine. If you go to a Filipino grocery store anywhere in the states, you see a large selection of corned beef from Brazil, Australia, and New Zealand.