You can somewhat reduce your vulnerability by preventive and defensive measures and by strict border controls but not eliminate it and definitely not win the war in a defensive way.
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	4	nsubj	4:nsubj|19:nsubj	_
2	can	can	AUX	MD	VerbForm=Fin	4	aux	4:aux	_
3	somewhat	somewhat	ADV	RB	_	4	advmod	4:advmod	_
4	reduce	reduce	VERB	VB	VerbForm=Inf	0	root	0:root	_
5	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	6	nmod:poss	6:nmod:poss	_
6	vulnerability	vulnerability	NOUN	NN	Number=Sing	4	obj	4:obj	_
7	by	by	ADP	IN	_	11	case	11:case	_
8	preventive	preventive	ADJ	JJ	Degree=Pos	11	amod	11:amod	_
9	and	and	CCONJ	CC	_	10	cc	10:cc	_
10	defensive	defensive	ADJ	JJ	Degree=Pos	8	conj	8:conj:and|11:amod	_
11	measures	measure	NOUN	NNS	Number=Plur	4	obl	4:obl:by	_
12	and	and	CCONJ	CC	_	16	cc	16:cc	_
13	by	by	ADP	IN	_	16	case	16:case	_
14	strict	strict	ADJ	JJ	Degree=Pos	16	amod	16:amod	_
15	border	border	NOUN	NN	Number=Sing	16	compound	16:compound	_
16	controls	controls	NOUN	NN	Number=Sing	11	conj	4:obl:by|11:conj:and	_
17	but	but	CCONJ	CC	_	19	cc	19:cc	_
18	not	not	PART	RB	_	19	advmod	19:advmod	_
19	eliminate	eliminate	VERB	VB	VerbForm=Inf	4	conj	4:conj:but	_
20	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	19	obj	19:obj	_
21	and	and	CCONJ	CC	_	24	cc	24:cc	_
22	definitely	definitely	ADV	RB	_	24	advmod	24:advmod	_
23	not	not	PART	RB	_	24	advmod	24:advmod	_
24	win	win	VERB	VB	VerbForm=Inf	19	conj	19:conj:and	_
25	the	the	DET	DT	Definite=Def|PronType=Art	26	det	26:det	_
26	war	war	NOUN	NN	Number=Sing	24	obj	24:obj	_
27	in	in	ADP	IN	_	30	case	30:case	_
28	a	a	DET	DT	Definite=Ind|PronType=Art	30	det	30:det	_
29	defensive	defensive	ADJ	JJ	Degree=Pos	30	amod	30:amod	_
30	way	way	NOUN	NN	Number=Sing	24	obl	24:obl:in	SpaceAfter=No
31	.	.	PUNCT	.	_	4	punct	4:punct	_
