This map requires a couple of skills.
Skill #1- Know when to cut your losses. It doesn't help if you completely lose an attack, and have only one territories. Especially later in the game, when others will have lots of troops to deploy, they can take you out in a single sweep.
Skill #2- Diplomacy ...

If you are in a game with 4-6 players I would say go for Central America (Unless troop deployment is automatic and you aren't near there) and you have 3 options.
1.) Go for Aussie, which you should only do if no one else seems to be doing. But typically someone will.
2.) Go for South America. Again ...

One strategy I like to use against inexperienced players is convince them someone else is the "bad guy". I don't know why, but once they think someone might dominate the game they are hellbent on stopping him. It weakens your top enemy without you having to fight him. The new player may eventually ...

This map requires a couple of skills.
Skill #1- Know when to cut your losses. It doesn't help if you completely lose an attack, and have only one territories. Especially later in the game, when others will have lots of troops to deploy, they can take you out in a single sweep.
Skill #2- Diplomacy ...