The population density in Libya shows Benghazi doesn't have the population to comprise a majority. NATO is backing a minority. It is instigating a revolt from outside the country and therefore constitute an invasion.
http://en.wikipedia.org/wiki/Libya
he following table shows the largest cities, in this case with population size being identical with the surrounding district (see above).
No. City Population
(2006)[166]
1 Tripoli 1,065,405
2 Benghazi 670,797
3 Misrata 550,938
4 Az Zawiyah 290,993
5 Al Bayda 206,180
Arabic↓ Transliteration↓ Pop (2006)[166]↓ Land area (km2)↓ Number
(on map)↓
البطنان Al Butnan 159,536 83,860 1
درنة Darnah 163,351 19,630 2
الجبل الاخضر Al Jabal al Akhdar 206,180 7,800 3
المرج Al Marj 185,848 10,000 4
بنغازي Benghazi 670,797 43,535 5
الواحات Al Wahat 177,047 6
الكفرة Al Kufrah 50,104 483,510 7
سرت Sirt/Surt 141,378 77,660 8
مرزق Murzuq 78,621 349,790 22
سبها Sabha 134,162 15,330 19
وادي الحياة Wadi Al Hayaa 76,858 31,890 20
مصراتة Misrata 550,938 9
المرقب Al Murgub 432,202 10
طرابلس Tarabulus 1,065,405 11
الجفارة Al Jfara 453,198 1,940 12
الزاوية Az Zawiyah 290,993 2,890 13
النقاط الخمس An Nuqat al Khams 287,662 5,250 14
الجبل الغربي Al Jabal al Gharbi 304,159 15
نالوت Nalut 93,224 16
غات Ghat 23,518 72,700 21
الجفرة Al Jufrah 52,342 117,410 17
وادي الشاطئ Wadi Al Shatii 78,532 97,160 18