>>2799910
The most popular martial art in the Philippines is known as Arnis. It's a weapons based striking art vaguely similar to JKD. So you're going to want to work on your distance control, disarming techniques, and footwork. Have a friend use a dowel to simulate a club and practice evasive maneuvers while looking for an opening to close the distance. You're definitely going to want to focus on your Krav Maga and BJJ training.
Besides that, be smart. Filipinos tend to be all bark and no bite, so if they insult or disrespect you or even look at you funny, let them have it. If you see someone following you or even vaguely suspect somebody is up to no good, get in his face. Shout him down, shove him, everything. The point is to be aggressive, confrontational, and violent. This will solve 99% of your problems. On the very low chance one has a gun, you can be sure he doesn't know how to use it and can be (relatively) safely disarmed with a quick strike to the hand/ elbow.
You're welcome.