Authors: Ira A. Hunt Jr.
3rd Airborne Brigade (South Vietnam),
135
,
137
3rd Armored Brigade (South Vietnam),
142
3rd Division (South Vietnam),
141
3rd FANK Division (Cambodia),
246
,
276
,
279
,
281
3rd KC Division (Cambodia),
246
3rd NVA Division (North Vietnam),
131
,
135
13th Brigade (Cambodia),
281
,
287
38th FANK Brigade (Cambodia),
278
36th FANK Brigade (Cambodia),
253
Tho, Brig. Gen. Tran Dinh,
4
,
25
,
26
,
47
,
83
,
139
,
203
301st NVA Corps (North Vietnam),
119
341st NVA Division (North Vietnam),
144
,
145
316th NVA Division (North Vietnam),
131
,
145
338th NVA Division (North Vietnam),
145â46
312th NVA Division (North Vietnam),
145
320th NVA Division (North Vietnam),
56â57
,
131
,
134
,
145
325th NVA Division (North Vietnam),
144
time of day: casualties related to,
54
,
54f
; initiation of attacks related to,
52
,
54f
,
55
,
341â42
Toan, Lt. Gen. Nguyen Van,
83
,
109
,
142
,
144â45
Tong Le Chan ranger camp (South Vietnam), siege of,
90â91
Tonle Sap River (Cambodia),
186
,
191
,
231
topography, military operations affected by,
52
Toul Leap, Cambodia, fall of,
278
Tra, Lt. Gen. Tran Van,
10
training: ARVN,
26â27
,
32â33
,
38
,
48
,
50
; FANK,
177
; Khmer Air Force,
180
; NVA,
113
; RVNAF,
26â27
,
48
,
183
Tri, Lt. Gen. Nguyen Bao,
26
tripartite deputies,
202â6
,
203f
; and ammunition shortages,
74â79
; and Mekong River convoys' security,
200
,
219
,
254â55
,
257â58
,
259
Tri Tam, South Vietnam, NVA attack on,
142
troop levels.
See
balance of forces
;
combat force structure
;
combat levels and tactics, South Vietnam
Truong, Lt. Gen. Ngo Quang: and problems in MR-1,
38
,
111
; and retrograde of forces,
132â33
,
137
,
139
,
147
Tu, Col. Tran Van,
143â44
Tuy Hoa, South Vietnam, retrograding troops to,
134
28th Brigade (Cambodia),
226
25th Division (South Vietnam),
142
21st Division (South Vietnam),
142
22nd ARVN Division (South Vietnam),
131
,
133â34
,
135
,
141
,
142
,
146
26th Army Regiment (North Vietnam),
31
23rd ARVN Division (South Vietnam),
131
,
135
23rd FANK Brigade (Cambodia),
244
,
280
213th NVA/VC Battalion (North Vietnam),
254
Ulmer, Col. W. F., Jr.,
33
United Nations, dispute over Cambodian seat in,
21
,
234
,
239â43
United States (U.S.),
66
,
87
,
171
; antiwar sentiment in,
122
,
173
,
277
; attempts at negotiated settlement in Cambodia,
276
,
288
; military presence in Thailand,
3
,
4
,
108
,
312â13
,
315
,
316
; personnel support for South Vietnam,
183â84
; presence in Laos,
318â19
,
320
; South Vietnam's feeling of abandonment by,
2
,
140â41
,
147
,
164
,
167â68
; troop withdrawal from South Vietnam,
11
,
19
,
36
,
170
,
298
U.S. Agency for International Development (USAID): Laotian demonstrations against,
318
,
319
; resettlement program,
235
; resupplying Cambodia,
206â8
,
211
,
219
,
266
,
270
,
284
U.S. Air Force: airdrop missions to Phnom Penh,
206â9
,
241
,
262
,
265
,
266â70
,
296
; assistance with South Vietnam evacuation,
155
,
162
; Cambodia supported by,
176
,
207
; in 1972 Easter Offensive,
27â28
; support of South Vietnamese army,
9
,
78
,
79
,
108
.
See also
Seventh Air Force (U.S., 7AF)
U.S. Army Matériel Command, PROJECT ENHANCE and ENHANCE PLUS,
26
,
27
,
28
U.S. Central Intelligence Agency (CIA), assessment of RVNAF,
100
U.S. Congress: Cooper-Church amendment of 1970,
173
; Foreign Aid Authorization Act of 1974,
194â95
; limit on U.S. personnel allowed in Cambodia,
181
,
283â84
,
298
; PL 480,
207â8
; reduced Cambodian War funding,
194â99
,
242â43
,
253
,
270
,
276â79
,
282â83
,
297â98
; termination of combat air operations in Southeast Asia,
3
,
14
,
18
,
29
,
170
,
221
,
241
,
298
U.S. Congress, reduced Vietnam War funding,
1
,
140
,
147
,
153â54
,
277
; and ammunition shortages,
68
,
70
,
74
,
77â78
,
87â90
,
92â98
,
106
,
107â9
; effects on RVNAF,
5
,
35â37
,
98â100
,
102
,
110
,
112
,
125â26
,
125t
; as factor in fall of South Vietnam,
164
,
167â70
,
298
U.S. Defense Assistance to Vietnam Program, FY 75 (U.S.),
92
,
94
,
95
,
184
U.S. Defense Intelligence Agency, assessment of RVNAF,
100
U.S. Department of Defense,
26
,
97
,
104
,
106
,
163
,
358
.
See also
Commander-in-Chief, Pacific (CINCPAC)
U.S. Embassy: and Cambodian evacuation,
284â85
,
288
,
359
; Laos,
318
,
319
; and South Vietnamese evacuation,
150
,
151
,
153
,
160â62
; Thailand,
315
U.S. Joint Chiefs of Staff (JCS),
74
,
115
,
155
,
282
; and Cambodian airdrops,
262
,
266
,
269
U.S. Marines:
Mayaguez
incident,
301â2
,
304â9
; Phnom Penh evacuation,
284
,
285
; South Vietnam evacuation,
155
,
158
,
160
,
161
,
162
U.S. Military Assistance Command (MACV): in South Vietnam,
1
,
2
,
64
,
108
,
202
; in Thailand,
266
U.S. Navy: South Vietnam evacuation assistance,
154
,
155
,
159
,
162
U.S. Pacific Command Intelligence Unit,
169â70
U.S. Support Activities Group (USSAG): deactivation of,
316
; and
Mayaguez
incident,
299
,
300
; mission,
2
,
83
; Thailand headquarters,
3â4
U.S. Support Activities Group (USSAG), in Cambodia: airdrops,
269â70
; ammunition supply analysis,
185
,
193
,
283
; evacuation plan,
150
,
284
; as MEDTC support,
174
; Mekong River security situation,
216
,
217
,
218
,
263
; operational analyses,
229â34
; and Pochentong Airfield attacks,
265
; population study,
235â36
; radio contact with FANK and MNK,
221â22
; and siege of Kompong Seila,
241â42
; situation assessments,
179
,
227
,
228
,
249â53
; transportation activities,
201
,
207
U.S. Support Activities Group (USSAG), in South Vietnam: ammunition conservation program,
70
,
71â72
,
77
,
96
; combat analyses,
39â59
; evacuation plan,
150â64
; funding issues,
96
,
101
,
167â68
; hamlet evaluation survey responsibility,
64â65
,
116
; MACV functions transferred to,
2
,
108
; RVNAF studies,
39â59
,
100â112
; Seventh Air Force affiliation with,
2
,
156
,
160
,
163
,
202
,
301
; threat assessment studies,
112â28
,
146
,
151
U-Tapao airbase, Thailand,
158â59
,
266
,
268
,
269
Vayama, Thailand, as supply port,
201
Vernamonti, Maj. Leonard F.,
65
Vien, Gen. Cao Van,
21
,
25â26
,
107
,
146
; and accounting of aircraft losses,
128â29
; and ammunition conservation,
70
,
81
,
83
,
84
,
85
,
87
; combat analyses,
34
,
47
,
61
,
62
,
126â27
; evacuation planning,
153â54
; politics and,
148
,
149
; and redeployment of forces,
18â19
,
123
,
133
; and U.S. funding cuts,
93
,
95â96
,
99
,
101
Viet Cong (VC),
6â20
; Cambodian invasion,
172
,
174â75
,
183
,
237
; historical perspective,
6â9
;
Mekong River interdictions,
254
; military regions,
45
; order of battle data for,
12t1
,
12t2
,
13â14
,
13t
; propaganda by,
2
,
58
.
See also
communists
;
North Vietnamese Army (NVA)
Viet Cong Dong Thap I unit (North Vietnam),
254
Viet Cong Infrastructure (VCI), terrorism by,
57â58
Vietnamese Air Force (VNAF),
181
,
331
; aircraft lost or destroyed,
128â29
; air support from,
9
,
37â38
,
50
,
55
,
144â45
; ammunition use,
70
,
76
,
78
; evacuation involvement,
141â42
,
154
,
156â59
; firepower and mobility of,
27
,
31
; lack of sophisticated electronic countermeasures,
18
,
29â30
,
122
; leadership issues,
25
,
34
; modernization program,
27
,
28
; troop withdrawals and,
144
; and U.S. funding cuts,
98â99
,
100
,
111
,
112
Vietnamization program,
7
,
321
; enhancing firepower and mobility,
27
,
76
; problems with,
19
,
26
; U.S. support for,
38
,
172
,
173
Vietnam War,
21
,
108â9
,
145
,
174â75
,
227
; Cambodian War related to,
171
,
174
,
182â84
; combat analysis,
39â59
; minor skirmishes dominating,
165
,
167
; 1972 Easter Offensive,
8â9
,
13â14
,
21â22
,
25
,
27â28
,
32
,
38
,
48
,
77
,
108
; NVA/VC in,
6â20
; reasons for South Vietnamese loss,
164â70
,
264
,
298
; South's strategy in,
20â27
; Tet Offensive,
12â13
,
122
; as war by budget,
185
,
298
; as war of attrition,
71
,
75
,
80
,
82
,
164
,
296
.
See also
ammunition, Vietnam War
;
attacks by fire, Vietnam War
;
casualties, Vietnam War
;
casualties, Vietnam War, enemy
;
casualties, Vietnam War, friendly
;
cease-fire agreement, Vietnam War; cease-fire agreement, Vietnam War, violations of
;
combat intensity factor (CIF), Vietnam War
;
combat levels and tactics, Vietnam War
;
dry-season offensives, Vietnam War
;
ground attacks, Vietnam War
;
U.S. Congress, reduced Vietnam War funding
;
weapons, Vietnam War