<s>
Army	B-Application
Attack	I-Application
was	O
a	O
social	O
networking	O
strategy	B-Application
video	I-Application
game	I-Application
developed	O
by	O
Digital	O
Chocolate	O
's	O
Helsinki-based	O
studio	O
.	O
</s>
<s>
In	O
Army	B-Application
Attack	I-Application
,	O
the	O
world	O
has	O
been	O
attacked	O
by	O
the	O
evil	O
Crimson	O
Empire	O
,	O
and	O
the	O
player	O
's	O
mission	O
is	O
to	O
build	O
military	O
alliances	O
for	O
their	O
army	O
with	O
other	O
players	O
to	O
reclaim	O
it	O
.	O
</s>
<s>
In	O
2012	O
,	O
for	O
the	O
Academy	O
of	O
Interactive	O
Arts	O
&	O
Science	O
's	O
15th	O
Annual	O
Interactive	O
Achievement	O
Awards	O
,	O
Army	B-Application
Attack	I-Application
was	O
nominated	O
for	O
"	O
Social	O
Networking	O
Game	O
of	O
the	O
Year.	O
"	O
</s>
<s>
According	O
to	O
App	O
Data	O
,	O
in	O
2011	O
,	O
Army	B-Application
Attack	I-Application
was	O
one	O
of	O
the	O
top	O
5	O
Facebook	B-Application
Player	O
vs	O
.	O
</s>
<s>
Army	B-Application
Attack	I-Application
features	O
two	O
gaming	O
modes	O
:	O
1	O
)	O
Player	O
vs.	O
Non-Player	O
(	O
PvNP	O
)	O
:	O
'	O
Liberating	O
City	O
&	O
Villages	O
 '	O
and	O
2	O
)	O
Player	O
vs	O
.	O
</s>
<s>
In	O
PvP	O
mode	O
,	O
called	O
"	O
Versus	O
,	O
"	O
Army	B-Application
Attack	I-Application
players	O
battle	O
each	O
other	O
to	O
increase	O
strategic	O
and	O
tactical	O
skills	O
.	O
</s>
<s>
On	O
an	O
Army	B-Application
Attack	I-Application
strategy	B-Application
map	O
that	O
is	O
stylized	O
for	O
this	O
type	O
of	O
play	O
,	O
players	O
select	O
their	O
military	O
units	O
beforehand	O
;	O
the	O
player	O
clicks	O
a	O
unit	O
,	O
then	O
dispatches	O
it	O
on	O
the	O
map	O
.	O
</s>
