<s>
A	O
MILS	O
system	O
employs	O
one	O
or	O
more	O
separation	O
mechanisms	O
(	O
e.g.	O
,	O
Separation	B-Operating_System
kernel	I-Operating_System
,	O
Partitioning	O
Communication	O
System	O
,	O
physical	O
separation	O
)	O
to	O
maintain	O
assured	O
data	O
and	O
process	O
separation	O
.	O
</s>
<s>
The	O
following	O
companies	O
have	O
MILS	O
separation	B-Operating_System
kernel	I-Operating_System
products	O
:	O
</s>
