Defendants-appellants Jaime Estrada-Fernandez and Jose Valenzuela-Hernandez appeal their convictions for assault with a dangerous weapon pursuant to 18 U.S.C. § 113(a)(3). They contend that the district court erred in failing to give certain lesser-included-offense instructions to the jury. For the reasons set forth below, we affirm the district court’s judgment of conviction and sentence as to Jose Valenzuela-Hernandez, and we reverse the district court’s judgment of conviction and sentence as to Jaime Estrada-Fernandez.
I. FACTUAL & PROCEDURAL BACKGROUND
On December 22,1996, correctional officer Lt. Travis Gilbreath was notified that there was smoke in one of the prison units at the Federal Correctional Institute at Big Spring, Texas. Gilbreath and other officers went to the unit and discovered that some of the fire extinguishers had been discharged, causing a large cloud. At the bottom of a stairwell within the unit, Gilbreath discovered a pool of blood and parts of broken broom and mop handles. He then observed a group of twenty to thirty inmates with broken broom and mop handles and pipes chasing another inmate down a nearby stairwell. The inmate being pursued fell to the ground and the other inmates began beating him with the objects they carried.
Gilbreath began pulling inmates off of the fallen inmate and ordering them to stop the beating. As Gilbreath pulled the second or third inmate away, that inmate struck him on the arm. Further, as he attempted to gain control of that inmate, another inmate struck him in the back three or four times. Gil-breath later identified Jaime Estrada-Fernandez (Estrada) as the inmate who struck him on the arm. James Soles, another correctional officer who was on the scene, later identified Jose Valenzuela-Hernandez (Valenzuela) as the inmate who struck Gilbreath in the back.
Gilbreath testified at trial that Estrada hit him with a broken broom or mop handle that was approximately one and one-half to two inches in diameter. Soles testified that Valenzuela hit Gilbreath on the back with a similar object. As a result of the blows, Gilbreath suffered (1) redness in his upper back; (2) redness, tenderness, and swelling in his lower back; and (3) an abrasion on his right arm. In addition, one of the blows to his back broke a portion of his flashlight carrier and bent his handcuffs.
Estrada and Valenzuela each filed a Notice of Alibi prior to trial in which each asserted that he was not present at the scene of the altercation. At trial, Estrada testified that he was cleaning the telephone area when he noticed a group of people running. In addition, he testified that later some prison guards called him names, threw him to the ground, and handcuffed him. Valenzuela and two other inmates testified that Valenzuela was either in his room or on the balcony of his room during the incident.
At the conclusion of the trial, Estrada requested that the district court instruct the jury on the offenses of (1) assault by striking, beating, or wounding and (2) simple assault, each of which he claimed qualified as a lesser-included offense. The district court denied his request, and he objected to that denial. Valenzuela did not request either of the lesser-included-offense instructions, and he did not object to the district court’s refusal to include them in the jury charge.
Estrada and Valenzuela each appeals the district court’s judgment of conviction and sentence, arguing that the district court erred in refusing to include the instructions requested by Estrada.
II. DISCUSSION
Valenzuela and Estrada contend that the district court erred in failing to instruct the *494 jury on the offenses of “[ajssault by striking, beating, or wounding” pursuant to 18 U.S.C. § 113(a)(4) and “[sjimple assault” pursuant to 18 U.S.C. § 113(a)(5). They argue that each of these offenses constitutes a lesser-ineluded offense of the crime of which they were convicted — “[ajssault with a dangerous weapon, with intent to do bodily harm, and without just cause or excuse.” 18 U.S.C. § 113(a)(3).
Federal Rule of Criminal Procedure 31(e) states that a defendant “may be found guilty of an offense necessarily included in the offense charged.” Fed.R.Crim.P. 31(c). In
Schmuck v. United, States,
may give a lesser-ineluded offense instruction if, but only if, (1) the elements of the offense are a subset of the elements of the charged offense, and (2) the evidence at trial permits a jury to rationally find the defendant guilty of the lesser offense and acquit him of the greater.
United States v. Lucien,
In determining, under the first prong of the test, whether an offense constitutes a lesser-ineluded offense with respect to the charged offense, we compare “the statutory elements of the offenses in question, and not ... [the] conduct proved at trial.”
Schmuck,
In order to convict a defendant of assault with a dangerous weapon pursuant to 18 U.S.C. § 113(a)(3), the government must prove that the defendant (1) assaulted the victim
1
(2) with a dangerous weapon (3) with the intent to do bodily harm. 18 U.S.C. § 113(a)(3);
see also United States v. Guilbert,
*495 Under the elements test, the offense of striking beating or wounding is simply not a lesser included offense of assault with* a dangerous weapon. Assault by striking, beating or wounding under 18 U.S.C. § 113(a)(4) ... requires a physical touching and is the equivalent of simple battery. However, assault with a dangerous weapon under 18 U.S.C. § 113(a)(3) ... only requires proof of an assault with a dangerous weapon, with the intent to cause bodily harm. The offense does not require proof of any physical contact. Consequently, a defendant may commit assault with a dangerous weapon without committing assault by striking, beating or wounding.
United States v. Duran,
Estrada and Valenzuela also contend that they were entitled to a lesser-included-offense instruction as to the crime of simple assault pursuant to 18 U.S.C. § 113(a)(5). In order to prove a defendant guilty of simple assault, the government need only show that the defendant assaulted the victim. In a prior case, we have approved of the district court’s giving a lesser-included-offense instruction on the crime of simple assault where the defendant was charged with assault on a federal officer with a dangerous weapon under a statute similar to the one at issue in this case.
See United States v. Bey,
We next turn to consideration of the second prong of the test for whether the defendants were entitled to a lesser-included-offense instruction on the offense of simple assault. A lesser-included-offense instruction is proper only when the evidence adduced at trial would permit a rational jury to find the defendant guilty of the lesser offense and to acquit him of the greater.
See Luden,
As it involves a factual inquiry, we generally review the district court’s application of this prong of the test for abuse of discretion.
See Lucien,
Valenzuela contends that he was entitled to a lesser-included-offense instruction on the offense of simple assault because there was a question of fact as to whether the broom or mop handle he used to hit Gilbreath constituted a dangerous weapon. At trial, however, Valenzuela focused exclusively on an alibi defense. He testified that he was in his room at the time of the fight and that he had nothing to do with the incident. In addition, two other inmates, Hector Valenzuela-Rivera and Ruben Rodriquez-Pando, testified that they observed Valenzuela in his room during *496 the incident. 2 Moreover, during his cross-examination of Soles, Valenzuela’s attorney attempted to demonstrate that Soles could have mistaken another inmate who was involved in the incident for Valenzuela.
“In deciding whether to request [a lesser-included-offense] instruction, defense counsel must make a strategic choice: giving the instruction may decrease the chance that the jury will convict for the greater offense, but it also may decrease the chance of an outright acquittal.”
United States v. Dingle,
Estrada argues that he was entitled to a lesser-included-offense instruction on the offense of simple assault for two reasons. First, he contends that, based on the evidence adduced at trial, the jury might have concluded that he assaulted Gilbreath but that he did so without a broom or mop handle. Second, he argues that the jury might have concluded that he assaulted Gil-breath with a broom or mop handle, but that such an object was not a dangerous weapon under the circumstances. Because Estrada objected to the district court’s failure to include a lesser-included-offense instruction on simple assault in the jury charge, we review its decision not to include such an instruction for abuse of discretion.
In order to be entitled to a lesser-included-offense instruction, a defendant must “demonstrate that given the evidence at trial, a rational jury could find him or her guilty of the lesser offense, yet acquit of the greater.” 26 Moore’s Federal PRACTICE,
supra,
§ 630.32[4]. We have explained that “ ‘[w]hile a defendant’s request for a lesser-included offense charge should be freely granted, there must be a rational basis for the lesser charge and it cannot serve merely as a device, for defendant to invoke the mercy-dispensing prerogative of the jury.’ ”
Harrison,
Although Estrada, like Valenzuela, presented an alibi defense, other evidence adduced at trial would have permitted a rational jury to convict him of simple assault and acquit him of assault with a dangerous weapon. During cross-examination, Estrada’s attorney impeached Gilbreath by questioning him about his initial incident report in which he did not mention the use of a broom or mop handle during the assault by Estrada. In addition, he questioned Gilbreath about the government’s inability to produce the broom or mop handle at trial. Finally, Estrada testified that he “didn’t use any weapons,” when asked whether he “intentionally using a dangerous weapon assault[ed] officer Travis Gilbreath.” 3
*497
Estrada also disputed whether a broom or mop handle, under the circumstances of this ease, constituted a dangerous weapon within the meaning of 18 U.S.C. § 113(a)(3). In
United States v. Bey,
we addressed a similar issue. The defendants in
Bey
were charged with assault on a federal officer with a dangerous weapon pursuant to 18 U.S.C. § 111 (1976).
what constitutes a dangerous weapon depends not on the nature of the object itself but on its capacity, given the manner of its use to * * * endanger life or inflict great bodily harm.’ ” Factors relevant to this determination include the circumstances under which the object is used and the size and condition of the assaulting and assaulted persons. A dangerous weapon is an object capable of doing serious damage to the victim of the assault; the jury could reasonably have found that the mop handles were not under the circumstances dangerous weapons.
Id.
(omission in original);
see also United States v. Schoenborn,
As Estrada presented evidence sufficient for the jury to find that he assaulted Gil-breath without a broom or mop handle and as any broom or mop handle that he did use may or may not have constituted a dangerous weapon under the circumstances, Estrada was entitled to an instruction on the offense of simple assault. The district court thus abused its discretion in denying Estrada’s request for such an instruction.
III. CONCLUSION
For the foregoing reasons, we AFFIRM the district court’s judgment of conviction and sentence as to Hernandez, and we REVERSE the district court’s judgment of conviction and sentence as to Estrada.
Notes
. Section 113 does not define the term "assault.” Courts have therefore used the common-law definitions of both criminal and tortious assault when interpreting the statute.
See United States v. Guilbert,
. The government and defense counsel also stipulated that another inmate, Enrique Rodriquez, would have testified that he observed Valenzuela in his room during the incident.
. Estrada also testified that he was not involved in the altercation at all. However, the jury was entitled to believe none, all, or any part of his testimony.
See
2 Wright,
supra,
§ 498, at 799
*497
("In determining whether to instruct on the lesser offense, the court must take into account the possibility that the jury might reasonably believe defendant only in part or might make findings different from the version set forth in anyone’s testimony.”);
cf. Chase
