It's likely not so much the device is not desired or the operating system is the problem, but most wargames require a sizable viewing surface, and require the employment of a mouse.
Battle Academy is not impossible, and Panzer Corps is possible, but a game like War in the East is just way to complex, needs a much larger screen to be enjoyable, and would suck the battery power out of a device rapidly. That would also apply to most opertational level wargames such as The Operational Art of War, Strategic Command, and the Close Combat series is just to much in need of a mouse input device.
Most wargames on a small screen would be about the same as most movies on a small screen. I have no intentional of ever watching a movie on my phone or instance. Ok to use to play music, but not video. Those willing to use small devices for long periods of time for intense viewing needs, are probably ruining their eyesight.
There ARE a lot of wargames made for mobile devices. But they are made for the device. Most PC wargames are made with the expectation they will be played on a PC.
Chec out Joni Nuutinen if you need a wargame fix for your mobile.
Wargame, 05% of the time.
Play with Barbies 05% of the time.
Play with Legos 10% of the time.
Build models 20% of the time
Shopping 60% of the time.
Exlains why I buy em more than I play em.